Question about Hayward SAND FILTER, PRO SERIES

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Control Valve handle wont stay in position

Hey guys.

I have a Hayward Sand filter Model S166T. If I go from filter position to backwash it will not pump. So I switch it back to filter and the handle won't lock into position.Not sure if its the gasket, or the spring is the culprit here or if i need a whole new Vari-Flo control valve for $153...YIKES!

Any help is much appreciated

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  • 3 more comments 
  • sscarline24 May 29, 2009

    Thanks scspriggs.

    I did that and I really can't see any issues. How can I tell if it's the rubber seal that went bad?


  • sscarline24 May 29, 2009

    scspriggs,
    I will have to look into the underside question when I get home from work. Thanks for the quick responses and i will get back to you


  • Samuel Charles Spriggs May 11, 2010

    There should be two rubber seals -- one around the valve top and one in the valve body. Look for distortion, out of place, torn, etc.



    If you turn the handle (with top in hand) does the underside stuff turn with it or is there "play" in this action?

  • Samuel Charles Spriggs May 11, 2010

    I would suggest removing the top of the valve and having a look see. You'll probably see the problem.

  • Anonymous Mar 21, 2014

    I believe my ball valve is leaking on the pool drain side at the handle in the open position can it be fixed w/o replacing the whole valve?

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  • Hayward Master
  • 1,378 Answers

The valve should be about $100. We sell it for 90 something. You can rebuild them with gaskets and the spring. There should be a model number on yours, care to post it? Something like SP711, SP714, etc.

www.arrowmotor.net

Posted on Jun 14, 2009

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1 Answer

Just had the spider gasket replaced and now water is "gushing" out the handle


Hi Shari,
I see two possibilities. 1. The diverter shaft o-rings are not sized correctly (or missing). 2. When valve handle was reinstalled it was not oriented properly with the diverter position in valve body.
Hope this helps you.

Jun 14, 2014 | Hayward SAND FILTER, PRO SERIES

Tip

Backwashing A Sand Filter with A Push/Pull Slide Valve or Multiport Valve


Lots of people are first time pool owners and pool professionals forget to teach these "newbies" about the simplest aspects of pool ownership.

One of the biggest questions we receive from new homeowners is "How do I go about backwashing my sand filter exactly?"

It doesn't matter if you have a Hayward, Pentair, Jandy, Sta-Rite or any other number of Sand Filters on the market they all utilize the same basic valves for backwashing; a push/pull slide valve or a multiport valve.


To backwash with a multiport valve:
1) Shut off pump motor.
2) Press down on valve handle, rotate valve from FILTER to BACKWASH position.
3) Roll out any backwash hose or open any waste line valves.
4) Open air bleeder assembly on filter, and turn pump on.
5) Watch pressure gauge for backpressure and hose for kinks. Be prepared to shut off pump quickly.
6) After hose fills with water, run for 3 - 5 minutes or until water runs clear.
7) Shut off pump motor and move multiport valve handle to RINSE position. Run on rinse for 15 - 25 seconds.
8) Shut off pump motor and move multiport valve handle to FILTER position.
9) Turn pump back on and note lower pressure.
10) Roll up backwash hose so the dogs use it as a chew toy.


To Backwash a sand filter with a slide valve:
1) Shut off pump motor, roll out backwash hose.
2) Twist to unlock plunger T-handle, push or pull(depending on manufaturer) the plunger 2" - 3".
3) Open air bleeder assembly on filter, and turn pump on.
4) Watch pressure gauge for backpressure and hose for kinks. Be prepared to shut off pump quickly.
5) After hose fills with water, run for 3 - 5 minutes or until water runs clear.
6) Shut off pump motor and push T-handle back down into locked position.
7) Turn pump back on and note lower pressure.
8) Roll up backwash hose.

Now you are a backwash Guru!

More tips and tricks are available form The Ugly Pool Guy, www.WeFixUglyPools.com

on Dec 14, 2010 | Pool & Spa

1 Answer

I have a hayward s166t filter, guage reads 0 and sight glass water does not swirl when backwashed


Does it show pressure when in "Filter" mode?

If not, then your pump is either not primed, Impeller is plugged, or there is not enough water in the pool, you are sucking air.

Jul 18, 2013 | Hayward S166T Pool Filter System w1 HP...

1 Answer

Hayward sand filter


Reference your pressure gauge as the 12:00 position. Going clockwise-
12:00 is Filter, normal running position
2:00 is Waste, water goes from pool and exits the waste line, bypassing filter.
4:00 is Closed, used only when servicing equipment
6:00 is Backwash, reverses water through the filter and goes out the waste line.
8:00 is Recirculate, water bypasses filter and returns to pool.
10:00 is Rinse, water goes through filter and exits to waste line, used briefly after backwashing to clear sediment from filter.
Note that the "pointer," not the handle that you grab, indicates which setting you are on.

May 19, 2013 | Pool & Spa

1 Answer

Hayward s166t sand filter has sand in sight glass during backwash


did you get sand in vertical tube if so it will take time to get out of line

Jun 12, 2012 | Hayward S166T Pool Filter System w1 HP...

1 Answer

My hayward s166t filter is missing the index for the control valve i.e. backwash, rinse, etc.... can you please help me? thanks steve alderfer


Go to the following site... http://www.haywardnet.com/inground/products/manuals.cfm#FiltersSand

Scroll down to the Valves under General Pool/Spa Equipment. Download each of the PDF Dcouments for Valves and find the one that closely matches your design. It will show the position of the different settings.

Sep 09, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

My Hayward s166t will no back wash when the control valve is in the backwash position. Just sounds come out of hose and it jumps around. Waste will not work either. Could my control value be broken?


Open the multiport valve and I believe you will find the gasket is no longer effective in compartmenting the various ports. This valve should only be moved in a clockwise direction, by the way. Replace the gasket and reassemble.

Aug 18, 2010 | Hayward SAND FILTER, PRO SERIES

2 Answers

Pentair Quad DE system was installed without multiport valve


This is a DE (Diatomaceous earth) IT doesn't have sand and doesn't backwash. You use the bump handle (with pump off and valves closed and vent open and drain dirty water/earth out) Here is a link to the manual for your filter If isn't the exact model they are all on their web site: http://www.haywardnet.com/products/Manuals/pdfs/manual9.pdf

Jul 20, 2010 | Hayward EC-40 DE Pool Filter with pump

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