Question about Hayward SAND FILTER, PRO SERIES

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After a thorough shocking/vaccuming the algae keeps returning within a few days. I notice after backwashing, when I put the filter back on, particles flow through the return back into the pool. What's going on?

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Sand seems channeled make sure sand is enough 2 bags for hayward filters mke sure after backwashing you switch to rinse before returning to filter

Posted on Jul 21, 2009

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4 Answers

I have a sand filter and my levels say ideal but water is real cloudy after adding chlorine


Take a sample to a pool shop and find out. If the pool has been green you may have dead algae floating around, a sand filter will never take that out. You need to flock it or new water. Then there is the toy you call a sand filter, OK when everything is perfect but small filters and pumps just won't handle a very dirty pool.

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Pentair tagelus t60d filter filtering algae back into pool


Have you backwashed the unit? That would clean out remaining algae.

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How come algae is leaking back into the pool? I have a hayward sand filter pro series.


too small and passing through sand try a scupe of DE between backwashes better when vacuuming alge go to waste keeps it out of your filter now super shock to get rid of algae in filter or change sand

May 30, 2014 | Hayward SAND FILTER, PRO SERIES

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What would cause my pool water to bypass the sand filter?? When i vacuum the algae off the bottom of the pool, i can see it coming back thru the return. The filter removes some of it, but not all. We...


algae is too fine for the sand to filter, filter to waste when you have algae or it will get in your filter now you have to backwash and super chlorinate your pool to get rid of it

Jul 07, 2011 | Hayward SAND FILTER, PRO SERIES

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My Hayward S240 is only catching a small portion of the dead algae. I have replaced the media, the laterals are intact, and have added a filter enhancer. The spider gasket is good. I have lots of dead...


dead algae is made up of microscopic particles. Most sand filters have trouble filtering out particles that small. I would recommend using a flocculent that will force the particles to settle to the bottom, you can then set the multiport valve to the "waste" setting and vacuum as much of the debris as possible. You can use an additive like fiberclear to help the filter clear the water up quicker.

Aug 10, 2010 | Hayward SAND FILTER, PRO SERIES

2 Answers

CLOUDY WATER


I too have this problem after treatment for algae, especially if I got a day or two without running the pump, it starts to get mildly green. After adding the algaecide, it kills the algae, but leaves what I call the white dead floating...it takes several days for this to phase out.

If you aren't already doing so, put 3" tablets in the pump basket housing, that helps dramatically. Put a pair of knee-high pantyhose (one inside the other), on the return inside the pool. (you will be amazed what it catches after a few days). Also you can try some "clarifier" to help clear up the cloudiness.

I'm no pool expert, but have dealt with the cloudiness myself. Through trial and error, have learned that cloudy water doesn't necessary mean dirty water. It will clear within a day or two if you are keeping stabilizer tablets in pump basket and using shock once a week. And run the pump for about 8-12 hours a day, it will clear up quicker. And to me, using the pantyhose is an extra-filter and it catches the 'gunk' that the sand in the filter isn't catching. (it can't possibly get everything). Be sure to backwash your pump frequently too.

Hope this helps at least some. Good luck!

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Pump is running high keep shocking it, had algae, cleaned it out, back flushed several times, cannot figure out why it's still running high? (unsure of brand)


DE filter? If so then you need to give the filter an acid bath to purge the dead alge from the filter (Fingers, Grids or Discs). Go with 1part muriatic acid to 3 part water. Let soak overnight. The water should turn almost neon green.Rinse off and reassemble. SHould be Good to go. DE and Cartridge filters should be given an acid bath once a year.

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Light brown algae(?), small 2 leafed clover growing in pool.


add a clarifier this will make particles bigger and will be more managable either through filter or vac

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