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    Hayward Perflex EC-40 DE Above Ground Pool Filter System

    Hayward EC40 DE Pool Filter Systems Provide Cleanest Pool Water

    The Hayward Perflex EC40 D.E. above ground filter system cleans your pool’s water with nearly twice the efficiency of a sand filter, saving you energy and money. A Hayward patented Flex-Tube™ design with diatomaceous earth filter powder makes this DE pool filter system one of the most efficient ways to remove the smallest particles, even microscopic dust and pollen, for crystal clear pool water. Pump includes on/off switch and power cord. read more
      • Item: # E3001 EC-40 D.E. Filter Only (without pump) $309.00
        EZ Pay options available! Call 800-288-7946 for details!
      • Item: # E3011 EC-40 D.E. Filter & 1-HP Pump (Up to 19,000 gal. Pool) $589.00
        EZ Pay options available! Call 800-288-7946 for details!
      • Product Description
      • Customer Review
      • Product Specification
      • FAQS
      • MORE INFO

      Hayward EC40A Above ground pool diatomaceous earth pool filter systems use DE powder derived from ancient microscopic skeletons called Diatoms to catch algae and other particles as small as 2 to 4 microns in size. The powder for Hayward DE pool filter systems is inexpensive and much more efficient than even sand filters, giving you an economical and highly effective way of having crystal clear pool water.

      • Hayward extended cycle Perflex D.E. above ground pool filter system uniquely expels air in the system for more efficient return of filtered water to the pool
      • Hayward Perflex Patented flex tube system reuses D.E. powder for more effective cleaning
      • Diffuser and lower mixing chamber produces a uniformed D.E. coating on the flex-tubes
      • Exclusive bump handle activates the flex-tubes, instantly purging themselves of dirt and powder
      • Easy to install and winterize with pump-to-filter union joint included
      • Corrosion-proof platform accepts optional chlorine feeder
      • Perflex EC40 Can be purchased with or without pump
      • No backwashing required, just bump 'n drain - saves water! 

      Technical Specifications:

      • Easy access clamp assembly.

      • Cleans pools fast -- removes even the smallest particles the first time through.

      • Uses D.E. (diatomaceous earth) filter powder -- the most efficient dirt remover known for swimming pool filtration.

      • Patented Flex-Tube™ system efficiently reuses D.E. powder and dirt mixture to form fresh cleaning surfaces.

      • Exclusive bump handle activates the Flex-Tubes, causing them to instantly purge themselves of dirt and powder.

      • Uniquely designed to expel any air that may be present in the system through the filtered water returning to the pool.

      • Combination diffuser and lower mixing chamber specifically designed to produce a uniformed coating of D.E. on the Flex-Tubes

      • On/Off Switch and 3-prong Power Cord Included

      • The above-ground industry's largest strainer basket for large debris collection with minimal maintenance.

      • Horizontal/vertical discharge feature -- simply converts from vertical to horizontal discharge orientation with the press of a button.

      • Quick disconnect intake and discharge pipe connection.

      • C-Clip Connector allows for easy disengagement of strainer housing in a matter of seconds for hassle-free maintenance.

      • Heavy-duty, high performance motor with integrated automatic thermal overload protector for years of operation.

      • High quality Noryl® impeller with wide openings to prevent clogging by leaves and debris.

      • Durable, corrosion-proof housing for years of dependable service and all-weather performance.

      • Heat-resistant, double-sized seal for long-lasting efficiency.

      • Energy-efficient, protected rear mounted switch.

      • Integral drain plug for easy winterization of pump.


      How much D.E. do you need for the EC-40?
      – 4 pounds of D.E. initially.

      How much area will the EC-40 System take up?
      – Height = 26-1/2”
      – Width = 25”
      – Length =15-1/2”

      What is the design flow rate?
      – 40 gallons per minute.



    • Running at high pressures.
    • – DE coated with normal accumulation of pool dirt, algae, etc.
      – Bump
      – Overcharge of DE.
      – Bump – Drain – Recharge
      – Restriction in return line caused by small eyeball fitting.
      – Change to larger size fitting.
      – Partially closed valve on return line.
      – Open valve.

    • Drop off of return flow.
    • – DE coated with normal accumulation of pool dirt, algae, etc.
      – Bump
      – Pump strainer basket clogged.
      – Clean
      – Skimmer basket clogged.
      – Clean
      – Pump impeller vanes clogged.
      – Cleaning with a stiff wire brush through the pump strainer opening will usually work. Alternate method would be to disassemble and clean.
      – Air leak on suction side of pump.
      – Check cover gasket, hand knobs, hose, clamps, etc. Replace or tighten as necessary.
      – Electric motor running less than maximum R.P.M. (underspeed).
      – Consult pump and motor troubleshooting guide. Note: Most motor problems are due to: 1. Undersized or improper wiring. 2. Power cut-backs. 3. Combination of both 1 and 2.

    • Short Cycles
    • – DE loaded to capacity with pool dirt, algae, etc.
      – Bump – Drain – Recharge
      – Bumping Incorrectly
      – Slow down stroke – brisk up stroke. Repeat 6 times.
      – Bump handle bent.
      – Check and straighten or replace.
      – Pump output exceeds design flow rate of filter.
      – Check GPM/LPM output. Regulate pump GPM/LPM output to max filter GPM/LPM rating.
      – Presence of algae.
      – Super-chlorinate; Bump-Drain-Recharge as needed.

    • Short cycles – even after proper Bump-Drain-Recharge.
    • – Contaminated (clogged) Flex-Tube braids caused by: 1. Natural accumulation of chemical deposits (accelerated if chemicals are fed through skimmer). 2. Running DE charge too long with excessive amounts of live algae present in pool. 3. Operating filter without DE. 4. Operating too long without DE after starting pump. DE must be added as soon as filter if full of water and pump is putting out a steady stream. IMPORTANT: Testing a new pool plumbing system without adding DE will cause this type of clogging.
      – Clean tube nest (2 methods).
      1. Detergent Cleaning: Remove tube nest and hose down with forceful stream of clean water. Soak tube nest in strong solution of laundry detergent (such as Cheer) and warm water. Hose down again.
      2. Chemical Cleaning. This requires use of water and muriatic acid solution (or filter cleaner-type preparations) to chemically dissolve contaminates. Consult your pool dealer for chemical cleaning instructions.

    • DE leaking to pool via the return lines.
    • – Opening or tear in one or more Flex-Tubes.
      – Replace Flex-Tubes
      – Rip or hole in diaphragm gasket.
      – Replace gasket.
      – Worn or loose fitting diaphragm gasket (chemicals fed through suction lines may shorten life of the part.)
      – Replace the gasket.
      – Loose bolts on tube nest plates.
      – Tighten Bolts.

    • Hard Bumping.
    • – Caking of DE under tube sheet. Sometimes caused by accumulation of sun tan oils, hair or floating particles that bind together in a clay-like form.
      – Bump-Drain-Recharge more often and reduce the use of oils.
      – Overloaded with DE. Sometimes happens when last charge of dirty DE was not properly drained.
      – Bump- Drain – Recharge more often.
      – Filter runs too long between bumping.
      – Bump more frequently.

    • DE leaking back to pool via skimmer or main drain.
    • – Filter check valve worn or stuck open.
      – Clean and/or replace.

    • Very short cycles when vacuuming.
    • – Very dirty water.
      – Bump – Drain – Recharge more often.
      – Presence of live, vigorously growing algae.
      – Add enough chlorine to control this growth – then vacuum.
      – Presence of alum or flocking agents, which will clog filter.
      – Vacuum so as to bypass filter. Avoid using flocking agents.

    • Motor won't start.
    • – Check for improper or loose connections, open switches or relays, blown circuit breakers or fuses.
      – Manually check rotation of motor shaft for free movement and lack of obstruction.

    • Motor cuts out - check for:.
    • – Wiring, loose connections, etc
      – Low voltage at motor (frequently caused by undersized wiring).
      – Binding and overload. (Amperage reading)

    • Motor hums, but does not start – check for:
    • – Governor stuck in open position.
      – Open capacitor.

    • Pump won't prime
    • – Make sure pump/strainer housing is filled with water and that cover gasket is clean and properly seated. Tighten hand nuts
      – Make sure all suction and discharge valves are open and unobstructed, and that pool water level is above all suction openings.
      – Block off suction as close to pump as possible and determine if pump will develop a vacuum.
      – If pump does not develop a vacuum and pump has sufficient “priming water”.
      – Tighten all bolts and fittings on suction side.
      – Check voltage to make sure pump is up to speed.
      – Open pump and check for clogging or obstruction.
      – Remove and replace shaft seal.
      – If pump develops a vacuum, check for blocked suction line or strainer, or air leak in suction piping.

    • Low Flow – Generally, check for:
    • – Clogged or restricted strainer or suction line; undersized pool piping.
      – Plugged or restricted discharge line of filter (high discharge gauge reading).
      – Air leak in suction (bubbles issuing from return fittings).
      – Pump operation underspeed (low voltage).
      – Plugged or restricted impeller.

    • Noisy Pump – check for:
    • – Air leak in suction causing rumbling in pump.
      – Cavitation due to restricted or undersized suction line and unrestricted discharge lines.
      – Correct suction condition or throttle discharge lines, if practical.
      – Vibration due to improper mounting, etc.
      – Foreign matter in pump housing.
      – Motor bearings made unserviceable by wear, rust, or continual overheating.

      Product Downloads
      Pump Information

      The Hayward PowerFlo is specifically designed for the unique elements of an above ground pool. The ultra-durable motor features innovative features like an integrated automatic thermal overload protector, ensuring years of use from this pump. The motor and shaft are also fully enclosed providing protection from the elements and quiet operation. The housing is constructed from corrosion-proof thermal-plastic and features an extra-large strainer basket that holds more so you spend less time on pool maintenance. The lid is see-through and is very easy to take off and on. The pump also has an on/off switch and includes a 6-ft. standard 110 V 3-prong plug. 1-year warranty.


      Filter Sizing Advice
      To ensure proper filtration and a trouble-free season: Your pool's size (total gallons) should be equal to or less than the Maximum Pool Size listed for each of our systems. Maximum Pool Size is based on an 8-hour turn-over rate.

      Since our high efficiency systems completely turn over your pool water in less time than standard 12-hour systems, you save money by running your filter less!

      When sizing a replacement pump, Dr. Pool strongly suggests that you replace with the same size horsepower as your existing set-up! In most cases, up-grading horsepower shortens your filter’s expected life and voids manufacturer’s warranties.
      Filter Information
      No matter how you look at the Perflex Extended-Cycle D.E. Filter System from Hayward, it's a clear winner. No other filter gets your pool so clean, so fast. and with so little attention. Best of all, Perflex's efficient first-time-through cleaning power reduces energy costs because you operate the filter for shorter periods. Which makes operating a Perflex as easy on your wallet as it is on you.

      • Catch all the latest dirt with Perflex
        Particles of dirt that elude conventional filters can't hide from Perflex. Its deep cleaning power removes microscopic dust and pollen as small as one micron - one hundred times smaller than a grain of salt. Leaving nothing but clean, pure, sparkling water for you and your family to enjoy.

      • Efficient one pass cleaning power.
        When particles of debris do show up, Perflex gets rid of them the first time through. So you can run it fewer hours per day, instead of running up your electric bill. You also won't spend time and money running to buy D.E. powder. Perflex's small appetite for D.E. means you'll need just three or four charges per season, as each charge lets you operate your pool up to four weeks.

      • Perflex's strength: it's all in the flex.
        Unlike conventional filters, the Perflex design incorporates unique Flex Tubes. D.E. filter powder automatically coats these patented tubes, and traps dirt and impurities as they're pumped through the filter. But here's the exciting part. When accumulated dirt causes pressure to rise and flow to decrease - the time when conventional filters need backwashing - Perflex gives you a handling on the situation. By gently moving its unique "Bump" handle up and down a few times, you'll automatically activate the Flex-Tubes. This repositions the dirt and D.E. within the filter, and extends the filter cycle. Freeing you to do more important things, like swimming or just relaxing.

      • No backwashing required.
        Three or four times a season, just "Bump", drain, and recharge your Perflex with fresh D.E. powder. It's that simple. And since Perflex cleans without backwashing, you'll save hundreds of gallons of treated pool water, and eliminate the problem of waste water disposal. While conserving your own energy as well.

      • Give yourself the gift of time.
        Your Perflex system is performance-tuned to the Power-Flo series of high-power, energy efficient pumps. Also available on some systems is the Power-Flo Plus the first fully-integrated pump and timer that lets you operate you filter system whenever you desire - automatically.

      • Still sparkling after 25 years
        Proven over many years by millions of satisfied customers, Perflex offers the best performance and value in swimming pool filtration. You'll enjoy convenience and dependability, year after year, thanks to its superior design and corrosion-free construction. But best of all - you'll enjoy the crystal clear, sparkling water it creates. See it for yourself today at your local Hayward dealer. Isn't it about time you had an absolutely Perflex day?

      FILTER TYPE: Perflex Extended-Cycle Diatomite
      FILTER TANK: Injection-Molded Duralon
      FILTER ELEMENTS: Dacron Flex-Tubes
      FASTENINGS: Stainless Steel
      PUMP AND MOTOR: Power-Flo Series Pump - 115 volts
      MOUNTING BASE: Injection-Molded ABS

      Performance Data
      Item Number Effective Filtration Area Design Flow Rate Turnover (In Gallons)
      8 Hours 12 Hours
      E3010, E3000 20 ft.2 40 GPM 19,200 28,800

      • Energy Savings
        For proper filtration of residential swimming pools, your filter system should provide a complete turnover of the pool water once every 12 hours. Determine the capacity of your swimming pool to select the correct size Perflex system, or consult Dr. Pool. Because Perflex filters are designed for high efficiency, you may use the 8 hour turnover rate and save energy costs by operating the system less hours.
      Warranty Products