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My sand filter leaks through the discharge hose. I took the valve off the filter, inspected, cleaned a few grains of sand off gasket and reassembled, tightening the screws sufficiently. The leak around the multiport valve stopped, but still some leakage through the discharge hose. Is there a "correct" position to remount the multiport valve? I suspect not, but unsure if it is aligned with the tank in the proper positions indicated. Do I require a new spider gasket or gasket around the valve perimeter? Who has parts?

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Bad multiport valve either valve it or replace

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Filter sand in pool


Greetings,
I am all in as well with the previous assistants (A. Miller) remedy to your problem.
Broken Laterals at the bottom of the filter.
There is no other way sand will enter the pool, bypassing the equipment, unless there is some kind of compromised equipment. As mentioned by A. Miller, the laterals are located at the bottom of the filter, normally about 9 of them approximately 6" long and about 1" in diameter. There are very thin cuts or kerfs in them that are smaller than a grain of #20 Silica Sand. Therefore only water (in theory - clean filtered water) will enter them after being pushed by pressure through the bed of sand to the bottom and entering the collection manifold via the lateral drain assembly.
As A. Miller mentioned, if only one lateral is broken, cracked or compromised, the pressure that is in that filter tank will definitely find that compromise and will "Push" sand right into that lateral, thru the rest of the system and into the pool terminating out the return lines and will collect normally immediately under the return lines. Normally more heavier at the nearest return line to the equipment area.

Although - Another possibility is, if the tank had more sand than required, when you "Backwash" sand could enter into a Multi-port valve (if you have one) and will enter into the return port, and when you turn the valve back to "Filter", you will see sand enter the pool.

Or, another reason could be inclusive of the problem above PLUS a deteriorated filter valve gasket, commonly referred to as a "Spider Gasket". The ports are supposed to be individually sealed and not allow water/debris/sand to pass between these ports, and this gasket keeps them individually compartmentalized.
But a compromised gasket seal could at times create a situation that may lead one to believe that a broken lateral is the culprit.

Removing sand is a chore! Taking the top cover off of the MultiPort valve is easier and a gasket relatively inexpensive.
But if your laterals are compromised, break out the ole shop vac and find that problem.
Good Luck

Apr 13, 2014 | Hayward SAND FILTER, PRO SERIES

1 Answer

Water runs out the backflush hose when filter set to filter setting.


The rubber gasket under the function selector has probably come loose and is leaking to the other outlets. You'll have to cut the water off from both sides and remove the top to inspect the gasket.

Jun 15, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

I have a hayward SP714 sand filter valve. I have sand getting back into the pool. I was told to replace o ring and spider gasket to fix problem


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

Feb 26, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

Sand being returned to the pool after vacumming through filter


This could be caused by several things. . After back flushing,did you rinse? Turned pump off, moved selector to rinse, and allowed to run until clear water was observed in the sight glass? If you continue to see the plume of particles, and it never stops, then you probably do have a problem. Your multiport valve gasket could be leaking by. Be sure you keep handle down when moving valve, and the gasket will last longer. You may have a broken, lateral (little fingers at bottom of the filter return piping. This would usually allow sand to flush out of the filter and it would be all the time. The "O" ring where the multiport valve seals to the down pipe could be leaking, letting the dirty incoming water mix with clean outgoing. Have you "cleaned" your filter lately? This is where you add a chemical to flush materials from top of sand pack? You can download a manual with troubleshooting instructions from www.haywardnet.com Enter your exact model number

Nov 06, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

A cloudy plume of fine particles is discharged into the pool after backflushing and rinsing. I was told this is indicative of a filter problem related to the sand or a broken piece in the filter core.


It depends on several things. After back flushing, you said you did rinse? Turned pump off, moved selector to rinse, and allowed to run until clear water was observed in the sight glass? If you continue to see the plume of particles, and it never stops, then you probably do have a problem. Your multiport valve gasket could be leaking by. Be sure you keep handle down when moving valve, and the gasket will last longer. You may have a broken, lateral (little fingers at bottom of the filter return piping. This would usually allow sand to flush out of the filter and it would be all the time. The "O" ring where the multiport valve seals to the down pipe could be leaking, letting the dirty incoming water mix with clean outgoing. Have you "cleaned" your filter lately? This is where you add a chemical to flush materials from top of sand pack? You can download a manual with troubleshooting instructions from www.haywardnet.com Enter your exact model number

Oct 17, 2010 | Hayward SAND FILTER, PRO SERIES

2 Answers

How to change sand in a s244s sand filter


Unhook the plumbing from the multiport valve, hopefully you have unions, it would make it easier. Take off the multiport valve on top by removing the bracket, usually held on by two phillips held screws that go into corresponding nuts. After bracket is removed, carefully wiggle the valve straight up, Don't wiggle it side to side, the PVC shaft in the is like Schedule 20 and breaks really easily. After valve is off do not try and pull the shaft up, there is too much sand waying it down and you will break it. Remove the sand with a cup or pop bottle cut in half or whatever. It is a pain to keep scooping it out with the shaft in your way, but I emphasize the strongly, do not try to move the shaft out of you way or pull it out without getting enough sand out of there. The other way to get the sand out, a little easier, is use a shop vac. You have to do it slow and kinda jiggle the hose while sucking sand because it'll clog the hose up. Get all the sand out, pull the shaft and lateral assembly out. The newer laterals fold up kinda like an umbrella so you can remove it, the older ones you have to unscrew each later individually to remove it. Inspect the shaft and laterals thoroughly to make sure none of them are cracked or not seating properly. Spray everything off, reinstall the lateral assembly, center it in the filter as best you can, most of them don't lock into anything, they just kinda sit there. Put duck tape or something over the top of the shaft so no sand gets in it. Pour about 50lbs. of sand in, (usually 1 bag), and recheck the shaft to make sure it is centered. An S244 requires 300 lbs. but just double check the label on your filter. Pour it all in, take the duct tape off of the top of the shaft, slide the valve back on, lubricate the gasket on it first, retighten the valve via the bracket you took off. Hook the plumbing back up and you are good to go. Backwash it right off the bat for a couple minutes before putting it on filter. You can potentially blow dust into the pool if you don't

Jul 13, 2010 | Hayward SAND FILTER, PRO SERIES

2 Answers

I have water running out of the waste valve,


Thank you for posting your question here on Fixya.com.

You need to replace the gasket inside the valve to stop the leak. The gasket kit is pretty cheap and not to hard to replace. We can try to get you the part number if you can post the valve brand and model. You should be able to call any local pool store with the brand of filter and get the part you need without any trouble.

If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved!

John

Jun 28, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

The pressure will not build up


Remove the air from the compressor using the drain valve.
Remove the discharge hose. The one that goes from the pump to the tank.
Remove the air filter (and check condition)
switch the compressor on an with your hand, partially cover the air intake where the air filter bolts on(be carfull not to fully cover it).
You should feel the pump drawing air in.
If it dosn't draw you have a broken/leaking valve or a blown cross-over gasket if it is of the type with a split valve plate.
You'd need to remove the head/valves/plate to confirm this.

If it did draw in air,
Stop the compressor & re-fit the discharge hose.
Now run for a few seconds and check the draw again.
If its suction reduces you also have a valve/plate/cross-over gasket problem.

If it draws fine.

stop the compressor and loosen the discharge hose at the tank end.
You may hear a short air leak at first, but you should not hear air contniously leaking.
If it continiously leaks air then the check valve in the tank is shot.
NOTE: NEVER remove this valve if the compressor has air in the tank/receiver.
This should locate your problem for you.
Regards

Dec 11, 2009 | Clarke Air Tools & Compressors

1 Answer

Problem with vari-flo multipoer 1.5 and Hayward DE fiilter


You need a rebuild kit for the valve and possible a sand change. Sand should be changed ever 3 - 5 years or so depending on overall pool conditions.

The gasket inside the valve is out of place and therefore allowing water to leak out the waste port. Use a gokit to replace all the gasket/orings and you should stop the leak.

If the flow is still bad, inspect the sand and change it if necessary.

Jun 26, 2009 | Hayward SAND FILTER, PRO SERIES

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