Question about Hayward SAND FILTER, PRO SERIES

2 Answers

I have 7 year old Hayward ProSeries, S-244S, H/R Sand filter. I've notice that when I vacuum the pool, dirty water returns to the pool. I've backwashed and the spider gasket is fine. No sa

Posted by William on

  • 1 more comment 
  • William Sep 20, 2012

    I emptied the sand and inspected all plastic parts. All seem fine. I replaced with new sand. I'll report on how that does next week.

  • William Oct 13, 2012

    New sand solved the problem. The pool shop told me I was likely backwashing too often, which opens channels in the sand and would cause the problem I was having. They suggested waiting until I see a significant increase in the water pressure before backwashing. Pool is crystal clear now!

  • David Price Oct 21, 2012

    I am having the same problem, I replaced the whole valve and that didnt slove the problem. Sounds like the sand is my next big purchase

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2 Answers

sigi284

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Sand filters only have limited filtration. If the dirt is very fine such as dead algae, it will go right through the filter. Use a clarifier to help give the filter finer filtration. Do not vacuum until you can see what you are doing, then vacuum on 'waste'

Posted on Oct 12, 2012

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Mike Tellegen

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  • Hayward Master
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Great advice about settled dirt and fine silt on pool floor = Vacuum to WASTE!
Reason: Chances are HIGH that that particulate is much smaller than the sand bed of the filter can actually trap!
therefore it will just pass right through back to the pool as UNFILTERED.
Vacuuming to waste is an option, But... With water restrictions popping up in many communities and actual fines for wasting water, another solution is to use a Filter Aid, when vacuuming which will allow you to use the 'Filter' mode vs. 'Waste' mode!
This is a product that you add thru the skimmer to "Coat" the top of the bed of sand, which will allow a much smaller "Micron" to be filtered.
Microscopic particulate is measured in microns. The best a sand filter can filter, is approximately 25 microns. A product that is used as a filter aid, can filter down to approximately 5 microns. So in actuality when a sand filter is in use, anything smaller than 25 microns will pass right through that filter, as unfiltered.
Just for fun, take a look at this link, it provides a table of common types of particulate. And their average size. You may be surprised to see what is passing right through that sand filter.
Particle Sizes

Fiber Clear Fiber Clear The Safe DE Alternative and All Purpose Filter Aid

Posted on May 05, 2015

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5 Related Answers

Anonymous

  • 52 Answers

SOURCE: There's sand in my pool!

I have had this issue with several clients and before worrying, you might have had sand being drawn back into pool lines during winterization. this happens when you blow out lines, plug holes, but keeping it pressurized. if it keeps happening check draw fins on bottom of filter.

Posted on Mar 02, 2009

james aurienne

  • 93 Answers

SOURCE: filter is shooting sand back into the water when

SOUNDS LIKE YOU ARE IN RECIRCULATE MODE TAKE HANDLE AND MOVE IT TO ALL THE POSITION TO TEST BACK WASH CYCLE ETC SAND SOULD BE FINE CHECK TO SEE IF YOU HAVE ENOUGH

Posted on Jun 19, 2009

james aurienne

  • 93 Answers

SOURCE: i have a 1 year old hayward sand filter and now

your setting is more than likely is not in the right position handle on top of filter has a sprocket under handel which is either not seated or has damage to it try turning handle to different positions several times sounds like you are stuck on recirculate

Posted on Jul 13, 2009

Anonymous

  • 760 Answers

SOURCE: We have a hayward sand filter and have replaced

There is more than one version of these valves. The model like sp072 has a 5 spoke spider gasket that has one opening larger than the rest. Be sure it is in position so that the large opening lines up with the large opening in the valve. If it's a SP0714 then the rubber is molded on the valve itself and would have to be replaced together. In either case, the seal is provided by the spring pressure forcing the valve faces together. That is why you should depress the handle, and only turn the valve while it's depressed, and the pump is off. After you turn to the selected location, then you release handle, and the valve surfaces should spring back together. Be sure the lever has spring tension on it in case you left it out while working on it) You can download complete manuals from www.haywardnet.com Good luck!

Posted on Aug 07, 2010

aquaman987

Gary Nigro

  • 927 Answers

SOURCE: I have a hayward SP714

Sand filters have a screen at the bottom. This screen keeps the sand from getting out because it has slits or holes that are smaller than the size of the sand grain. The slits are large enough for the water to pass. If the material breaks there are areas that are large enough to allow the sand to pass and this won't stop until you replace the strainer elements.
In order to do this, you must remove the sand, remove and inspect the strainer and replace the sand.
Bring your model to a local pool supplier, confirm what I am saying, make sure they have the necessary parts and go from there.
Gary

Posted on Feb 26, 2011

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Related Questions:

1 Answer

While vacuming loses suction, sand filter pressure goes high


That increase is due to the filter loading up with debris. Is the pool unusually dirty? If there is a lot of dirt and silt in the pool use the "waste" setting on your backwash valve while vacuuming.
This allows the water to bypass the filter and go directly out the waste line. Keep an eye on your water level because you will be removing water from the pool and may have to add more.

Jun 30, 2013 | Hayward SAND FILTER, PRO SERIES

1 Answer

This spring we changed the sand in our filter. Sand was purchase from the same location we purchased our pool. When i vaccuum the pool the dirty water is sent out the return back into the pool and the...


I don't like sand filters very much but that still should not be happening. If you have a multiport valve on your filter, take it apart and see if the spider gasket is in good condition and if it's secure. Sometimes if a spider gasket swells it can push its way out of the grooves where it is fastened. Also, if you have ever turned the multiport selector know without fully depressing it, if could have pulled a part of the gasket out and it's now letting water return to the pool without being filtered at all.

New sand should not be causing this problem, check your multiport and see if that is the problem.

Hope this helps

Jul 30, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

While vacuuming the pool, the dirty water shoots back into the return. we replaced the sand, and laterals looked in tact.whay is it doing this?


it sounds like the filtration canister has been bypassed that would be the first thing to check if thats good check your filter canister it could be dirty

Jul 17, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

I put my Hayward ST180T on rinse to vacuum the pool and I ended up with sand in the pool what happen?


You are using the wrong setting to vacuum. This type of pool filter should be set to "filter" for normal vacuuming or to "waste" for heavy loads. The "rinse" setting makes sure that all of the dirty water is out of your filter after backwashing.

Jul 14, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

When vacuuming pool dirty water is being sent back into pool. filter is one year old


Are you sending thw water to waste or ar you filtering it? If you are filtering it through a multi port valve, the spider gasket could be faulty. Proper way to vacuum is through the filter then back wash the filter after cleaning the pool.

I suggest you take the top from your filter and inspect the sand, it should be solid over the top. Have you tracked the pressures over the past year? When was the last back wash? You should back wash only when the pressure goes up 20 PSIG from start (when the filter is clean and free of debris.)

Tell me more please. . . .

Jun 13, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

While vacuuming my swimming pool and the valve setting is on filter, the dirty water is returning into the pool. Ive just changed a brand new spider gasket, replaced #20 silica sand. Did i miss anything...


Try changing the setting on your pool filters control valve to waste. This will bypass the filter and vacuum directly to waste. If this works, it could be a problem with the filter's "filter" setting and you may need to service or replace your control valve.

Feb 15, 2011 | Hayward SAND FILTER, PRO SERIES

3 Answers

Dirt comes back thriugh the return when I vacuum


if your pool is clean its not sand when we vac customers pools we put vac in pool and put vac hose over pool take a wet vac put on end of hose outside pool keep it on only long enough to get water flowing save your filter and water if you want to vac through skimmer make sure you are in filter mode good luck

Jul 16, 2009 | Hayward SAND FILTER, PRO SERIES

1 Answer

I have a 1 year old hayward sand filter and now everytime i vacuum for a short period of time it discharges dirty water back into the pool


your setting is more than likely is not in the right position handle on top of filter has a sprocket under handel which is either not seated or has damage to it try turning handle to different positions several times sounds like you are stuck on recirculate

Jul 11, 2009 | Hayward SAND FILTER, PRO SERIES

3 Answers

There's sand in my pool!


I have had this issue with several clients and before worrying, you might have had sand being drawn back into pool lines during winterization. this happens when you blow out lines, plug holes, but keeping it pressurized. if it keeps happening check draw fins on bottom of filter.

Mar 01, 2009 | Hayward SAND FILTER, PRO SERIES

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