Question about Hayward S166T Pool Filter System w1 HP PumpS166T92S ()

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We cannot get a good pressure of the pump. We can backwash, but it doesn't show that it is cleaning it.

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You can check the impeller for clog. If your pump basket is cracked or out of place **** will get past it and lodge in the impeller and cut water flow way down.
Remove the basket and reach back into the impeller with a screwdriver or the like and feel in the center for soft stuff. If you have any, work it out by working it in a counter clockwise direction till it loosens. Than reach in and pull it out with long nose pliers.
It sounds like this could be your problem and this should fix it.

Posted on Sep 09, 2010

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1 Answer

How to get the right pressure to backwash and rinse


you dont need a lot of pressure to backwash just make sure water is clean coming out then rinse for 30 sec then put back on filter do not turn valve while filter is running you will ruin multiport gasket

Jul 18, 2014 | Hayward SAND FILTER, PRO SERIES

1 Answer

Backwash pressure


Backwash pressure is not really relevant unless you are getting a high reading. Most psi will show 0-5 lbs. If it runs higher than that check the waste line to make sure that any valves are all the way open, or for kinks in the discharge hose.

Sep 12, 2013 | Hayward SAND FILTER, PRO SERIES

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...

2 Answers

Who often should I backwash sandfilter


I would let it run for about a minute depending on how clogged it was. Our backwash drain is very visible so we can see when the dirty water has left the filter, usually about a minute or two.

Apr 06, 2013 | Hayward SAND FILTER, PRO SERIES

1 Answer

How to use backwash to waste


When the filter get clogged the pressure in the filter increases and there is less water flow returning to the pool.
If your filter is a sand filter, when you turn the valve to backwash and turn on the pump it reverses the water flow in the sand filter to flush the dirt out of the filter to waste. Look at the window openning in the waste pipe and keep the backwashing goinging until you see clear water.
Then turn off the pump and move the control valve to Rinse, turn on the pump for a few minutes, this returns the water flow back to normal but the water goes to waste to make sure the sand filter is clean.
Turn off the pump and move the control valve to filter and turn on the pump. This mode is the normal operating mode and the pressure gauge in the sand filter will show a drop in pressure.
Some pressure gauge shows a red section to indicate when backwashing should be carried out.

May 02, 2012 | Hayward Pool & Spa

1 Answer

The pressure gauge on top of the filter only reads 5 psi. I backwashed and added DE and it still only reads 5 psi. It also read 5 psi after filter was backwashed and before DE was added. What prompted me...


Is there good water flow? Can you feel good flow at the pool return?
If so, using your hand, try to stop the flow. Does the pressure go up?
If the pressure goes up, something inside the filter is not presenting resistance to flow as is normal; it could be a broken element, etc.
If there is no flow or if the pressure doesn't go up, make sure that there is no obstruction in the line coming from the pool to the pump. Check the inlet basket, inlet strainer in the pump, look for debris in the pump inlet & pump outlet piping.

Gary

Aug 20, 2011 | Hayward 1.5 Hp Northstar High Performance...

1 Answer

I have a swimpro sand filter it is 5 yrs old and this season when i started it up it doesn't seem to have very good pressure i have backwashed it three times and it wont even run my pool cleaner no...


If there is not much pressure, the problem is with the circulation system. Probably the pump.
When a sand bed gets old the pressure goes up on the guage, but the filter doesnt do much. When there is a lack of pressure, its due to a problem with the water flow. Usually a clogged impeller, strainer basket, or skimmer basket.

The most common solution for a loss of pressure is to dissasemble the wet end of the pump, clean out the impeller, and replace all o-rings and seals, including the shaft seal. This will revitalize the performance of your pump.

Jun 02, 2011 | Hayward SAND FILTER, PRO SERIES

3 Answers

Pressure up past 15 or 20 shortly after


The sand is clogged and needs a backwash or change.

May 25, 2010 | Hayward Pro Series 18" Above Ground Pool...

1 Answer

Our Jaccuzzi Magnum Force pump extremely low pressure


Giving it a good cleaning probably clogged the pump impeller. If you vac'd the pool and the pump basket was packed with debrie it probably passed through and clogged. Split the pump and inspect the eye of the impeller. Low pressure means low flow.

Aug 26, 2009 | Jacuzzi MAGNUM FORCE POOL PUMP - TWO SPEED...

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