Question about Hayward EC-40 DE Pool Filter with pump

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Hayward eC-40 pump losing pressure very fast

I have the EC-40 It is always giving the same problem every year when trying to start it up. I put the right amount of de powder and the pump has great pressure but within an hour there is no pressure. Why am I having this problem every year?

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A better way to clean the filter tubes in the EC40 is to remove the filter tube assembly and soak it in a 5 gallon paint pail that is filled with a solution of water and a 20% muriatic acid, available at hardware and home center stores. Be very careful handling the muriatic acid. Don't splash it around.

Mix it in a 1-to-1 ratio with water and soak the assembly for at least 8 hours. Keep the soaking pail out of the reach of kids and animals.

Remove the assembly, properly dispose of the acid mix and refill the pail with clean water. Soak again for 3 to 4 hours, then reassemble your filter.

Some pool guys say it isn't necessary to soak the tubes in clean water because the muriatic acid will not harm the pool water and will reduce the pH if it's too high. I've always soaked them to be safe.

This is a link to the Hayward manual that describes the process:
www.haywardnet.com/products/Manuals/pdfs/manual9.pdf

Posted on Jun 30, 2009

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Your filter fingers inside pump are dirty you must take out the the filter assembly wash off with a hard spray from hose to clean the fingers off if you have a bump handle open drain plug on filter and bump out de reassemble start with just enough de to coat fingers less than what it calls for make sure pool is vacumned

Posted on Jun 25, 2009

  • james aurienne Jun 25, 2009

    your filter fingers inside pump are dirty you must take out the the filter assembly wash off with a hard spray from hose to clean the fingers off if you have a bump handle open drain plug on filter and bump out de reassemble start with just enough de to coat fingers less than what it calls for make sure pool is vacumned

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