Question about Hayward EC65 Extended Cycle DE In Ground Pool Filter System with Pump

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Pressure increase over the red line on pressure gauge while we were away for a weekend. Now pool is cloudy white. I am assuming this is DE. Back washed and cleaned filter twice. However, after running for about an hour the pressure goes over the red line. Is my filter done? Do I need new finger/gasket? Let me know. Thanks russs

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When the pressure goes up, try this. Pour some muriatic acid in the skimmer. (about 1/2 bottle) Let pump run for a little bit,(long enough for acid to get into filter)then shut off pump for 5 minutes or so. If pressure goes down to where it should be when it's turned back on, it needs to be disassembled and cleaned and then acid washed.

Posted on Jul 28, 2010

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Lose press on retrn to pool using Hayward S166t with brand new veri flow pump attached. I back wash and pressure restored is excellent but within 15 or twenty min drops off again.


what is the water like?
Dirty? Green? Murky? Cloudy?
Something is clogging the filter!

Let me ask this, you said: "Pressure drops Off" ???
Do you have a pressure guage on the filter?
Does the pressure increase? Or does it Decrease?
This will be an important piece of information!!!!
  • If pressure increases on the pressure gauge...
    • then filter is working and filtering out dirt and filter is clogging up.
  • If pressure decreases on the filters pressure gauge,
    • then the basket, or literally anything that is decreasing or stopping the water from getting to the pump, or more precisely to the internal impeller of the pump!
Most commonly - plugged impeller, baskets need to be checked, enough water in pool? etc.

May 17, 2015 | Hayward Pool & Spa

1 Answer

I get DE back into my pump strainer and I only can filter for 2 to 3 hours before pressure is up to 20 to 25 lbs and I have to use bump handle to start filter again with results


The de coming back into the pump isnt anything serious, there may be a small air leak causing the water in the filter to drain into the pump.

As far as having to bump every couple of hours... is the pool really dirty?

Is your pressure gauge broken? Turn off the pump, does the gauge drop to zero? Alot of times they dont drop to zero, so when you hit 25psi it may really only be 15. Happens alot actually.

If pool is clean and clear and the gauge is fine... have you ever taken apart the filter and cleaned the de fingers? If not, i would take it apart, rinse all of the fingers and then let them soak over night in a filter cleaner solution. This cleans them much better then a plain garden hose spray. After they soak, spray them down again, add new de and you should be good to go....

Aug 15, 2010 | Hayward EC-40 DE Pool Filter with pump

1 Answer

Pool had a lot of brown silt algae,cloudy put in correct amount of chemicals,back washed several times.pressure at 17 lbs goes to 21 in 1 hour.Tried to drain filter and I cant get the water to come out.I...


First I'm assuming we're talking about a sand filter. Back washing is the right thing if pressure increases.A 8-10psi pressure increase is the magic number where you must backwash. Be sure to run a rinse cycle too before returning to filter. If you want to clean filter you can buy chemicals that you add to your skimmer as you backwash. Follow their directions. If you do want to drain the water, open your basket cover on the pump and remove plug, this will allow air to enter the filter, so it will drain. It drains slowly. Not really necessary, except to winterize.l

Aug 03, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

Filter pressure is 0


I'm assuming the pump runs, and the water is circulating from the skimmer back to the pool. Do have the pump running when checking pressure? Second be sure "filter" is selected on multi-port valve. Third, remove gauge with pump off and test gauge with compressed air and be sure gauge is working (don't overpressure gauge depending on gauge scale) If gauge is defective replace. If you still have no pressure on gauge, you might be "bypassing" the filter media (sand) due to a broken pipe from the bottome of the multi-port valve. You sould still see some pressure though as your pump should have some back pressure to the pool.

Jul 04, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

D.E. NOT STICKING TO FILTERS


Is this your first time using the pool filter? There are several things that you will want to check. Make sure that the pump is primed and running. Make sure that all air has escaped the filter and that you have a steady stream of water from the return line. Then, you need to pre-coat the filter with DE. This is an important step. Scoop 5 lbs. of DE into you skimmer as fast as the plumbing will take it. You will also need to regenerate when your pressure drops off. Stop the pump. Move the bump handle down slowly, then up briskly. Repeat 3 times. Restart the pump and filtration will resume at near the original flow and pressure. After each regeneration, and until the filter is cleaned, there may be a slight increase in the starting pressure. This is the result of dirt accumulating within the filter and is completely normal.

May 09, 2010 | Hayward EC-40 DE Pool Filter with pump

1 Answer

No pressure to the spa


Is the pressure High or Low on the filter gauge?

Aug 22, 2009 | Hayward EC-40 DE Pool Filter with pump

2 Answers

De filter pressure too high water is cloudy


backwash the filter from main drain until sight glass is clear-this will reduce filter pressure. After backwashing return gate valve to filter position, then filter from main drain only. check water chemistry. add a clarifier to water

Jul 28, 2009 | Pentair 3/4HP Pinnacle High Performance...

1 Answer

Pool doesn't have pressure. Checked pump no blockage. Had the pool guy put air through the lines and no clog. Filter has zeobrite sand, but it's green? Pool company said it shouldn't be green. We are going...


Hi my name is Juan and I was a pool tech in california now located in georgia and let me try solve this if your filter is dirty it created a high pressure in your filter gauge with poor suction to check this bypass the filter and see if suction increase sometimes your gauge is bad and is not showing the true reading but if is good and pressure is to low then is so clear you have a suction leak try to replace the pump lid O ring and if you have spa check the intake valve where you select pool or spa if you don't have spa then the air leak is in the pipe connected to the pump suction side believe me this is a common problem

Jun 15, 2009 | Pool & Spa

2 Answers

My pool pump pumps water, return is low pressure


fix any air leaks on suction side of pump. Check valve positions.
Clean filters...may need to replace cartridges in cartridge filter, or take out D.E. grid assembly and clean it on a D.E. filter, or change sand in a sand filter...

Mar 26, 2009 | Pool & Spa

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