Question about Hayward SAND FILTER, PRO SERIES

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Hayward d.e.pool filter lid stuck


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  • Hayward Master
  • 1,631 Answers

Open all air & drain valves, if multi-port valve - place in "Winter" mode. If push pull type valve place between positions. This will relieve any siphon & pressure in the filter tank. After clamp is removed, use a screwdriver or other "Firm" type of pry bar (2 or more would be better) and then begin to carefully pry it off or apart.
If this does not help. then there is another way to do this,
At times the filter tends to weld themselves together and it is very difficult to remove (like what you posted - stuck lid) due to excess greases, Vaseline is the main culprit, never use Vaseline on orings - it makes them swell. Use a Silicone or Teflon based Lubricant! And the o-ring is swollen in most cases for these types of problems and need to be replaced.
Anyway, with filter valves back in filter, waste, or backwash mode, Air relief valves wide open & drain cap/plug removed from filter, and the clamp is off, Quickly and consecutively - turn pump on and then off, On and then off. The water pressure will pop the lid off the tank. As you can tell, this can be dangerous as the filter tank will become pressurized and if you leave the pump on for too long (more than a couple of seconds) that lid will fly off that tank at a high rate of velocity with very possible Dangerous circumstances.

Be very careful and good luck.

Posted on May 04, 2014


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Posted on Jan 02, 2017

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SOURCE: Bought a new home with pool which has the Hayward

Need some more info on the Sand filter. I can help you out. With the rest. Is that the pic of the filter you have. If it is then its a top mount. Depending on the debri that comes into pool, you will back wash 1-2 times a week. After back washing you will turn to rinse and let it run for awhile (of course each time you turn the handle make sure the pump is OFF. Set, then turn on.) then back to filter.. Any Q's just hit me up buddy..

Posted on Mar 11, 2009

  • 4 Answers

SOURCE: d.e. earth pool filter returning dirt to pool

The flow tubes inside the filter canister are torn and letting dirt pass. The repair is simple and can be done by someone with a few hand tools. Download the manual for the filter

You'll only need to replace the ones that are ripped, and the cost runs about $3 - $5 each. Search around on Google for a supplier or try a local pool dealer.

Posted on Jun 30, 2009

  • 279 Answers

SOURCE: Can't get my hayward filter lid off. It turns a

Sounds like it is stripped. Hope it is the cap and not the part the filter is in. If you are very careful you may get the top off by taking 2 items you can pry with. Either screwdrivers or something similar. Have another person help if there is room. Place one of the pry items under the edge of the cap and put a little upward pressure on it. Have another person do the same thing on the opposite side. Now, carefully start to work the top off. Allow yourself time and patience. It will probably turn with difficulty but keep going. I assume it is plastic and maybe when you take the top off you will cut some new threads. They may allow you to use the same top or not, good luck...Lee

Posted on Oct 08, 2009

  • 78 Answers

SOURCE: Hayward vari flo filtering system

Check to make sure the plumbing is in the correct inlet/outlet on the valve head. Sounds like it's plumbed backwards. Inlet is from the pump, out to pool...

Posted on Apr 22, 2010

  • 640 Answers

SOURCE: hooking up filter to pump and pool

This website contains a copy of the owners manual for the S180T pool filter. It should have all of the information that you need.

It is in PDF format. let me know if you have any trouble opening it.

Posted on May 24, 2010

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