Frequently Asked Questions
About Encyclon Boat Wash Water Recycling Solutions

Why not put untreated waste water down the sewer?

Alternatives

Can I filter wash water and discharge it to the city sewer?

 

Why not haul off all the waste water and skip recycling?

 

Why not build a solar system to evaporate the waste water?

 

Why not wash boats over fabric filtration pads?

 

What factors should I consider when designing a wash pad?

 WashPads

Are recycling systems approved by the EPA or DEP?

 

How do I handle rainwater on the wash pad?

 

How does an Encyclon hydro-cyclone work?

Filtration

How well does Encyclon filtration work?

 

How can I be certain that Encyclon works as advertised?

 

What filtration level is safe for pressure washers?

 

Does Cyclonic filtration use filter cartridges or media?

 

What else do I need to buy with the Encyclon recycling unit?

Operation

Can I supply two wash pads with one Encyclon unit?

 

How do I dispose of the waste (swarf) removed by the unit?

 

How do I protect my system from freezing?  
How does cyclonic filtration prevent bacterial odors?

 Water Quality

Can the filter operate while not washing boats?

 

How often do I have to add water to the Encyclon system?

 

How often does the water in the recycling system need to be changed?

 

What other chemicals can I expect to add to recycled water?

 

Do Encyclon marine recycling units remove oil?

 

Does cyclonic filtration increase the temperature of the wash water?  
What are the electrical requirements for the unit?

Specifications

Does the Encyclon marine filtration unit use a PLC control?

 

How much space is required for the Encyclon Recycling Unit?

 

Why do I need a clean water pump?

 

Why do we use a Rusco filter strainer?

 

Do Encyclon units require frequent maintenance?

Maintenance

How often does cyclonic cone require cleaning?

 

How durable are Encyclon filter cones?

 

Will Encyclon parts be easy to obtain in the future?

 

Where is the Encyclon filtration equipment manufactured?

 

           

 


 Alternatives

Why not put untreated waste water down the sewer?
It's illegal to put untreated pressure-washing wastewater down most sewers. Pressure-washing wastewater includes dirt, algae, barnacles, salts, and paint particles. The paint particles are the source of heavy metals. About 90% of the heavy metals; copper, lead, tin, zinc, and arsenic are solid particles that are not dissolved. The EPA developed Phase I of the NPDES Storm Water Program in 1990 that requires permits for storm water discharges for most marinas. Typical municipal sewer standards limit copper concentrations to the 2.4 to 8 mg/l range for contaminate that can be placed down a sewer under these rules. Typical untreated pressure-washing wastewater samples contain copper levels in the 50 to 190 mg/l range that are over the limit.

Handcuffs in Jail

             
Can I filter wash water and discharge it to the city sewer?
It is possible to use the Encyclon marina unit to filter water for discharge to a city sewer with the proper permits. Filtering 98% of copper concentration from a 190 mg/l solution would leave 3.8 mg/l for the first pass through the system which is midrange for the typical limit of 2.4 to 8 mg/l for municipal sewer standards. Multiple passes through the Encyclon unit will lower the concentration of particulate copper. Most discharge permits will limit the volume also require testing and monitoring of the effluent. Most marinas find that the paperwork associated with frequent discharges of treated waste water to a municipal sewer makes this not a practical solution.
             
Why not haul off all the waste water and skip recycling?
It's very expensive to haul off the 17,600 gallons of waste water that a typical marina may generate in a year. This total is based washing 200 boats with a 4 gpm pressure waster running for 22 minutes to create (88) gallons of waste water per boat. Evaporation may reduce the total waste by 421 gallons to 17,179 gallons of water. The waste water collected will require hauling (69) of the 250 gallon bulk totes to a disposal facility. If the majority of boats are washed over a 6-week period then you will need to purchase at least (12) bulk totes and arrange to have the contents hauled off to the disposal site each week.
The 250 gallon totes cost between $200 and $600 each for a total outlay of at least $2,400. Liquid waste disposal costs depend on local area, but you might be able to negotiate a rate of $10.85 per (42 gallon) barrel or $65 to dispose of the contents of each 250 gallon tote using bulk tanker transport. Hauling away a truck load of individual bulk totes may cost significantly more. At a minimum, the disposal costs equal $4,485 for each season. If also you add the $265 for the cost of the extra water, then you will have spent $7,150 the first year. That amount adds about $35.75 to the cost for each boat washed.

250 gallon bulk tote

             
Why not build a solar system to evaporate the waste water?
You would need to move your marina to the desert and build a very large solar evaporator to be effective. A typical solar evaporator has a capacity of 20 gallons in a year per square foot of evaporator in warmer climates where the mean temperature ranges between 48 to 88 F degrees. They can be less effective depending on the amount of rainwater. For a typical southern marina that may generate 17,600 gallons of waste water, they may need over 880 square feet (29.7 x 29.7 feet) of evaporator. For more northern locations, with only 6 months of warmer temperatures, the size of evaporator required would double. The solar evaporator will also require building permits, pumps, electrical controls, and pre-filters or frequent cleaning. Many marinas would also need a large tank (15,664 gallons or 2,094 cubic feet) to hold 89% of the waste water for processing if the majority of boat washing is done only during the 6-week winter haul out season. A 15,664 gallon steel tank that is 14 ft x 15 ft x 10 ft deep will alone require an estimated $6,000 investment. When you add the cost of an appropriately sized solar evaporator, the total investment may exceed $20,000.

I've never seen any of these evaporator systems that did not include a drain valve somewhere in the system. One of my early experiences with a marginal solar evaporator was in the plating industry. The owner of the company ended up going to jail for illegal dumping after a disgruntled employee informed the EPA who was really opening the drain valve at night to empty the holding tank. The Encyclon marina unit includes a lockable drain valve to prevent unauthorized system draining.
             
Why not wash boats over fabric filtration pads?
They have huge potential environmental costs. At least two companies promote a permeable filtration pad as an alternative to recycling waste water. This filtration pad leaves most the copper, paint chips, biological growth, and containments on the pad surface under the boat after washing. The remaining wash waste water passes through this black mesh pad and flows into nearby surface waters or the ground water. A typical 30 ft x 75 ft wash pad could be constructed from materials that only cost $745. The disposable pad is supposed to be good for 30 washings before the dirty pad is then removed and disposed as solid waste. If you don't include the labor for the time it takes to install the pads, that amount adds just $24.83 to the cost for each boat washed.

If this disposable pad is less than 500 feet from the water's edge, the marina's storm water permit may have to be modified since the water can now be discharged into a body of surface water protected by the Clean Water Act. The marina may also be required to sample of the wash water effluent at intervals specified by the permit.

This filtration pad works better than earlier versions made from canvas sunshade mesh, but it still suffers from the same problem. These new mesh pads are made from non-woven polyester or polypropylene geo-textile fabric with smaller #70 US Sieve (or 0.0083-inch) openings. The #70 US Sieve size is about 43 times larger than the 0.00019-inch particles that are removed with Encyclon 5-micron filtration. The openings in the fabric of the disposable pad will allow smaller copper particles to permeate the soil below. If anyone finds this hard to believe, then try this experiment. Place any filtration pad over an asphalt surface and sand a boat bottom over it. Next rinse the bottom with a hose to flood the filter pad. Observe the stream of water that is tinted the color of the bottom paint as these particles flow from under the pad down slope to stain the asphalt.

Many state DEP's have already developed a general permit for groundwater discharges that require waste collection and treatment as well. At many golf courses the DEP already has rules that prohibit washing mud from a golf cart over the ground. Most groundwater discharge permits are only valid for a limited number of units with discharge amounts that decrease with each year. Often groundwater permits lead to expensive soil testing from core samples to map groundwater contamination plume patterns.
Discharges of antifouling paint and contaminated wash water to the ground will eventually contaminate the soil with pollutants which may become an environmental liability in the future. The marina is just one negative test result away from a costly clean-up that involves removing tons of potentially contaminated soil. Real estate transactions may become more complex as reluctant buyers may demand full disclosure to avoid purchasing a marina that could be the next EPA hazardous waste site.

Contaminated Soil Removal

             

 WashPads

What factors should I consider when designing a wash pad?
1. Waste water recycling systems will require a wash pad to collect the water for recycling. This impervious wash pad surface is usually made from either: Concrete, Steel, Asphalt, Rubber or PVC. A wash pad typically slopes to a drain and may have raised edges to prevent waste water from contaminating the ground or surface water.

2. The wash pad should be sized to accommodate the largest boat that the travel lift can be expected to handle. Smaller sizes will minimize construction cost and reduce rainwater accumulation. You may also consider if additional space at the site for recycling systems, windscreens to contain the over spray (drift plumes), and retention ponds for rainwater if required by your storm discharge water permit.

3. Concrete is the typical choice for a permanent wash pad. Because of heavy loads from the travel lift and sandy sub soils, most marinas will require the services of a professional engineering firm for design of a wash pad. Pre-engineered raised modular steel wash pads may also be a cost effective solution for some permanent installations.

4. EPDM Rubber or PVC Plastic sheet are the typical choices for temporary or seasonal wash pads. There are several companies that offer systems that include foam or inflatable retention edges. Other marinas have simply purchased PVC pond liners or Rubber roofing membranes and draped them over landscape timbers or foam to
build a low cost wash pad.

5. Waste water must be diverted to a central collection point called a sump. The wash pad must be above the sump for a gravity drain system to work. Some portable wash pads use a vacuum system to extract water from the pad surface to the sump. Encyclon builds recycling systems for both small and large sumps. Larger sumps (over 50 gallons) can also be used for a dirty tank. Our self-priming cyclone pump can directly remove water from larger sumps located within 12 feet of the unit. Smaller sumps (under 50 gallons) are typically are pumped dry to a dirty tank. A standard 1/3 hp consumer sump pump is typically used to empty the smaller sumps. You cannot substitute a sewage lift pump for a sump pump because the macerator can also aerate some types of algae to attach a bubble that reduces the efficiency of the cyclonic separation.

6. Most filter systems including Encyclon use a strainer basket before water reaches the sump to prevent large trash from entering the filtration system. Encyclon requires a strainer with 1/8-inch diameter maximum perforations in the screen
             
Are recycling systems approved by the EPA or DEP?
The federal EPA or state DEP does not approve specific recycling systems. Government agencies usually do not tell you what you can do, but only specify what you cannot. In this instance, Marinas cannot pollute surface waters. Wastewater that drains to surface waters is considered an illegal discharge under the Federal Clean Water Act. Section 319 of the Clean Water Act (CWA) provides the statutory language establishing EPA's Non-point Source Management authority and specifies the requirements for each state. Since recycling water eliminates the possibility of a non-point discharge, any marina that is correctly using an Encyclon recycling system will be in compliance. Zero discharge is the safest way for marinas to handle the waste water from boat washing.
             
How do I handle rainwater on the wash pad?
Annual rainfall varies greatly between areas with about 36 inches in Cleveland to over 52 inches for Miami. A heavy rain is defined as rain fall between 0.16 and 0.63 inches per hour. We only consider this 0.63 amount because at some point, you probably should not be washing boats in thunderstorms.

A typical 50 x 60 foot wash pad has 3,000 square feet of surface area to collect water. If it rains 0.63 inches per hour, this pad can collect 157 cubic feet or 21 gallons of water during each hour of heavy rain. If your wash pad is located in Miami then you would be collecting 13,000 cubic feet or 1,737 gallons of water from the pad each year. You can expect about 12 gallons of water to evaporate for each day of use, so after 145 days it should be all gone. Of course you would need a place to store enough rain water for this to actually work.

Most states have rules as part of storm water discharge permits about how much rain water that must be stored for wash pads located less than 500 feet from tidal wetlands. They often require basins designed to retain the volume of storm water runoff generated of either 1 or 5 inches of rainfall on the site. Using the calculations for the same 50 x 60 foot pad would only require storing 21 or 105 gallons of rain water to be in compliance with these storm water discharge permits.

Another way to avoid rainwater problems is to cover the pad with a roof. Unfortunately this is expensive and makes washing sailboats with a mast up all but impossible. It may eliminate storm water permit issues as the water from the building's gutters can usually be diverted to storm drains.

Storm water permits usually do not allow diversion of rain water from the wash pad to storm drains without first cleaning the possible contaminates from wash pad. For compliance, the wash pad must be cleaned after each use and a sewer drain bypass must be opened to divert rainwater. The sewer drain bypass must be closed to allow recycling before washing boats or risk penalties for illegal discharges.

The sewer drain bypass valve position can be made less operator dependent, but at a cost of increasing the complexity of the installation. Cleaning the pad could also be automated by installing extra pumps and flushing lines. There are several systems available that can automate operating the diverter valve prior to rain storms, or just after the pad is flushed by rain. Most of these automatic solutions are somewhat complicated and usually involve special drain grates with automatic diversion valves controlled by programmable logic controllers. Although Encyclon does not offer these automated solutions, Fox Environmental specializes in this type of additional equipment. These types of "first flush" systems are very popular with military installations.

The sewer drain bypass method does not work when pressure washing during the rain because contaminates are continually being generated. To wash boats in the rain requires that you capture the rainwater from the pad, filter the captured rain water and either reuse the rainwater, or discharge this filtered rainwater to an approved sewer system under the procedures specified in your discharge permit.
             

 Filtration

How does an Encyclon hydro-cyclone work?
Dirty water enters the side of the cone with an input pressure of 35 PSI and clean water exits the top of the cone with an output pressure of less than 10 PSI. The dirty particles are continuously discharged in a 0.3 gpm spray from the 0.25 inch diameter orifice at the bottom of the cone. Check out this
diagram for more information.
             
How well does Encyclon filtration work?
Cyclonic filtration removes up to 98% of all suspended solid particles down to 5-microns or 0.00019-inches. The filtered particle size is more than
(8) times smaller than a 220 grit abrasive grain of sand. Encyclon cyclonic cones generate a centrifugal force at 7,500 times gravity so the heavier copper items found in marina waste water are filtered at the most efficient rate. The Encyclon cone has a 98% efficiency rating on the first pass, however since the water passes through the filter multiple times, the 98% efficiency is effectively multiplied endlessly. The dirty water is usually filtered during a cycle that is normally repeated every few minutes depending on tank size.

             
How can I be certain that Encyclon works as advertised?
Since 1974 we have sold thousands of filters for demanding industrial applications. Our industrial customers include some of the world's largest corporations who have the resources to regularly test fluid samples and reject filtration systems that do not perform to advertised standards. When an aircraft engine builder makes a bad filter choice, a defective part that causes an engine failure can result in a disaster that is significantly more expensive that a damaged pressure washer.

We are confident in the ability of Encyclon filters to remove swarf from fluids. If you have any doubts, then ship your contaminated water to Encyclon. We will run your 5-gallon sample through our cyclonic filter unit. Then we will return all the swarf removed along with a small clean water sample for your evaluation.

You could send the sample out for testing if looking at the vial is not clear enough proof. We normally recommend that our customers send out samples to
Beckman Coulter Inc, of Hialeah, FL as they developed the widely accepted Coulter Principle for the process of fluid particle classification testing. A typical Beckman-Coulter test report from an actual fluid sample will cost about $350 plus shipping. After few weeks you will find that we really do filter 98% of the water to 5-microns.
             
What filtration level is safe for pressure washers?
Most pressure washer specifications require a clean water supply with no particles that are larger than 20-microns. The larger pressure washers can use 4 gallons per minute of water. Encyclon standard marina filtration systems supply water at 20 gallons per minute with 5-micron filtration that offers users a 4:1 safety margin.
             
Does cyclonic filtration use filter cartridges or media?
Cyclonic filtration does not require paper filter cartridges. Encyclon high efficiency hydro-cyclones are used to filter 98% of the solid particles to a 5-micron level. Encyclon uses the one hydro-cyclone over and over, compared to several boxes of our competitors filter cartridges for filtering waste water. It's surprising how little debris our competitor's canisters actually hold when their filters become clogged and require another cartridge change. Several of our competitors include cost estimates of $3 to $10 per boat for filter media expense. These cost estimates probably do not include shipping and the labor required to change the filter.

No Filter Cartridges

             

 Operation

What else do I need to buy with the Encyclon recycling unit?
The standard trailer mounted Encyclon system comes with everything required to operate for many concrete wash pads with a large sump that is within 12-feet of the unit. The sump will need a grate or strainer basket with a maximum of 1/8-inch diameter perforations to catch the larger debris.

You may need to add a sump pump for pads with smaller or remotely located sumps. There are other plumbing variations that include dual tanks and clean water pumps for special requirements. For a list of typical plumbing configurations see our
plumbing diagrams.
             
Can I supply two wash pads with one Encyclon unit?
Yes, since the Encyclon standard marina filtration unit's capacity of 20-gpm is much larger than the 4-gpm requirement of larger pressure washers. You will need to add (2) sumps and sump pumps that pump back to an extra dirty tank to our standard system. The total cost for these modifications is much less than purchasing two systems. For a typical dual plumbing configuration see our
plumbing diagrams.
             
How do I dispose of the waste (swarf) removed by the unit?
Depending on your trash makeup and the local requirements, either normal trash or a licensed hauler can remove and dispose of the very wet solid waste. There is less to dispose of with cyclonic filtration because there is no used filter media to dispose of along with waste.

The Encyclon filter cone ejects the swarf into a 25 gallon waste container. For many marinas, this large capacity container often holds all of the smaller waste generated during the fall haul out season. This underflow from the cone also adds about 1-quart each minute of liquid into the trash container. The waste container is equipped with a baffled overflow that allows the excess water to return to sump. At some point all of the water in the waste container will have been displaced by the waste collected and the waste container must be emptied.
             
How do I protect my system from freezing?
We recommend that you drain and blow down the system prior to any long term winter stowage. Propylene glycol can be added to the self prime's cyclone pump to prevent freezing. There is also a drain plug that can be used for draining the pump. Trailer mounted units may also be easily moved to a heated building.

For short term protection when it is not desirable to winterize the unit, continual operation of the system and heat from the pump, will usually prevent freezing as long as the water is flowing and temperatures do not drop to subfreezing levels.
             

Water Quality

How does cyclonic filtration prevent bacterial odors?
Our cyclones continuously aerate the coolant during filtration to check anaerobic bacterial growth with a supply of oxygen. You can hear this air being drawn into the end of the ceramic cone during operation. Living organisms need oxygen to maintain the metabolic processes that produce energy for growth and reproduction. The dissolved oxygen in waste water determines whether the biological changes are brought by aerobic or by anaerobic organisms. Aerobic bacteria use free oxygen for oxidation of organic and inorganic matter and produce innocuous end products. Anaerobic oxidation however, causes the reduction of certain inorganic salts such as sulfates that cause bad odors. Aerobic organisms are highly desirable to keep anaerobic organisms in check. Since both types of organisms are present in waste water, unless aerobic bacteria receive proper amount of oxygen, the anaerobic bacteria will take over and cause a bad odor.

Many of our competitor's filtrations systems just kill all the bacteria using expensive chlorine, biocides or ozone generators. A few use chemicals to change the water pH to a level that is not only harmful to bacteria, but can also be harmful to gel-coat and operators.
             
Can the filter operate while not washing boats?
Yes, the filtration process does not require a pressure washer to recycle water. The unit should be run frequently to prevent stagnant water and stop most bacteria problems. Long idle times will cause some odors to develop. Of course, submicron marine residue in the water may still smell like fresh fish even without bacteria involved. We encourage running the system often to polish the water in the tanks to prevent odors.
             
How often do I have to add water to the Encyclon system?
Marinas can usually expect less than 10% of the water used to be lost to evaporation during operation, so make-up water will need to be added to keep the tank at the desired level. Surface water evaporates at approximately 1.5 gallons per square foot per month during a mild November (Temp 52ºF) unless it rains. Usually only 50% the wash pad is wet for 25% of the time during the wash season. For a 1,500 square foot (30 ft x 50 ft) pad, during a typical 6-week (36 day) haul out period, expect the loss of about 421 gallons (2.25 x 1500 x 0.5 x 0.25) due to evaporation. Users would need to add about 12-gallons of water per day to the system.
             
How often does the water in the recycling system need to be changed?
Most users change the water after each season or after washing about 200 boats. The duration depends on the frequency of use and how often replacement water for evaporation loss is added. At some point however, it will become evident that the water needs to be changed. The contents of the 100 gallon water tank can be disposed of by either using evaporation, using a certified waste hauler, or discharge to a sewer with the appropriate permits.
             
What other chemicals can I expect to add to recycled water?
You may eventually have to add chemicals for pH adjustment to neutralize your water tank. You can find most of these chemical at swimming pool stores. Accumulated salts are not removed by any physical filtration method. These salts will build up over time on hard surfaces unless treated.
             
Do Encyclon marine recycling units remove oil?
No oils or hydrocarbons are removed during cyclonic filtration. Fortunately, these items are not normally part of the pollutants generated by washing the bottom of boats. You can minimize petroleum byproducts by not washing bilges or emptying bilge water on the wash pad. It is possible to add an
Encyclon oil wheel skimmer to remove oil, but this unit is only effective during slack periods.
             
Does cyclonic filtration increase the temperature of the wash water?
Although warm wash water may be useful for enhanced cleaning, don't expect the Encyclon unit to significantly increase the temperature of the water. All water pumps add heat to the water from energy used based on motor horsepower. The small 2-hp cyclonic pump is about the same size found in most hot tubs that need heaters to keep the water warm. The cyclonic pump only adds about 50% of expected heat or about 2,545 BTU per hour because of the cooling effect of air injected through the cyclonic cones during operation. That is enough heat to raise 100 gallons of water by 1-degree F after 15 minutes of operation. The temperature of the water in the tank is more affected by the heat transfer from the wash pad surface.
             

 Specifications

What are the electrical requirements for the unit?
Simply connect our filtration unit to a standard 125V/1 ph/60hz/30-amp marina dockside power adapter using the included cord. The standard marine unit requires less than 20 amps of power. Other power configurations are available for our international customers.
       
Does the Encyclon marine filtration unit use a PLC control?
No. The Encyclon uses a very simple control, just one waterproof on/off switch for the basic marine unit. Water recycling systems should not require a PLC computer to control complex multiple filtration components found in some of our competitor's units. What happens if when the power spikes or water damage their control panels? How do you get back to washing boats when their whole system crashes and the program must be reloaded?

Encyclon Simple Controls

             
How much space is required for the Encyclon Recycling Unit?
The complete recycling system fits on a trailer with a deck that measures 48-inches wide by 96-inches long. The tongue, spare tire and jack extend about 36-inches from the front of the deck of the trailer. The tires and fenders extend about 15-inches on each side. The complete footprint measures 132-inches by 78-inches. The unit is 63-inches tall. See the
drawings of the unit for more details.
             
Why do I need a clean water pump?
Although most pressure washer pump specifications imply that zero pressure is required, we find that many older pressure washers simply do not work very well with low pressure water. Typical city water systems supply water a pressures between 20 and 60 psi compared to the 7 psi pressure usually supplied by the cyclone discharge.

It's not possible to increase this discharge pressure because a restriction in the diameter of the pipe used in close proximity to the cyclone discharge without also increasing the back pressure on the hydrocyclone. At indicated gauge discharge pressures in excess of 10 psi, the efficiency of the filtration is significantly reduced.

If your application needs a higher output pressure for flushing or pressure washer supply requirements, then divert water from the cyclone output to a second clean tank and use a pump to develop whatever pressure is required. The Northern shallow water pump that is part of Encyclon complete systems provides water pressure from 19 to 72 psi.
             
Why do we use a Rusco filter strainer?
While the hydrocyclone filters solid particles to 5-microns, very lightweight long strand growths are not as effectively filtered. Most pools have the same problem with hair and also use strainers with paper cartridge filters and sand filters. Inactive boats that seldom leave the dock can develop these long strand growths near the waterline using paints without effective biocides. These long hairs do not develop sufficient centrifugal force in the hydrocyclone due to bending and flexing of the fiber. Fortunately these weak fibers are usually chopped into shorter strands by the cyclone pump's impeller that is more effectively filtered. The stainless screen in the Rusco filter traps any remaining strands before they reach the pressure washer. The screen can be flushed using valve on the bottom of the unit for cleaning.
             

 Maintenance

Do Encyclon units require frequent maintenance?
Periodic lubrication is required at 1,200 hour intervals for the Gusher pump and at 1-year intervals for the trailer wheel bearings. There is no periodic maintenance required with hydro-cyclonic unit. The hydro-cyclone is simple to service as the cone can be disassembled without tools. The filter system is very low maintenance because the standard marine unit has just one moving part ---- the cyclone pump. There is not much that can go wrong with Encyclon units if the installation conforms to these requirements:

  • Strainer basket to catch the larger stuff placed before the hydro-cyclone
  • Cyclone pump to supply dirty water from a tank at the correct pressure
  • No restrictions in the clean water output that cause high back pressure

Pressure gauges are supplied as part of Encyclon filters to help troubleshoot these types of installation problems.

             
How often does cyclonic cone require cleaning?
Encyclon cones never require cleaning unless the strainer that stops large debris from reaching the cyclone pump is missing from your installation. Since all debris removed must pass through nozzle at the end of the ceramic cone, any particle larger than the 0.25 inch diameter hole in the ceramic cone can block the discharge. To prevent clogging the larger particles must not reach the hydro-cyclone. We specify a grate or strainer basket with a maximum of 1/8-inch diameter perforations to catch the larger debris ahead of the sump. In the unlikely event that the cone becomes clogged, simply use a wire clear the obstruction inside the tip or unscrew the lower ceramic for access.
             
How durable are Encyclon filter cones?
Encyclon hydro-cyclones require very little maintenance. They were initially designed for removing abrasives and steel from industrial grinding coolants and filled a hopper full of swarf each day. Industrial users typically change these ceramic tips after a year. Industrial users filter thousands of pounds of abrasive and steel particles from water based coolants each day, so removing a few hundred pounds of copper loaded paint chips is relatively easy stuff by comparison.

The cone bodies are made from nylon. Encyclon hydro-cyclones cannot rust. The tip of the ceramic nozzle can be expected to last several years when used with marina applications. Eventually the discharge orifice will wear from the abrasion of the dirty particles being discharged. The $65 replacement cost is a real bargain when compared to costs for frequently changing our competitor's filter paper, bags, or cartridges.
             
Will Encyclon parts be easy to obtain in the future?
No one can predict the future, but our past history is a good indicator of what to expect. Encyclon replacement parts and cones are presently readily available. With hundreds of industrial installations in service worldwide since 1974, Encyclon expects remain profitable and keep making parts into the future.
       

Encyclon Factory

Where is the Encyclon filtration equipment manufactured?
The Encyclon filtration units are manufactured at our plant in Kenosha, Wisconsin, USA. Replacement parts are also shipped from this location.