Question about Hayward SAND FILTER, PRO SERIES

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What is the normal psi on a haward sand filter with a 1hp pump for a 15ft. round pool. it is running about 10 to 11 psi right now is this normal or bad pool is 8yrs old

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I was told that between 9 to 12 psi is normal on all pool pumps.

Posted on Jun 29, 2009


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My haward sand filter is running at about 20 psi is that normal

That 20 PSI does not mean anything to anyone that is going to help you. Every system will have its own "Starting Pressure". It all depends on how it is plumbed, what equipment is included (size and GPM), how big the pool is will address the issue of how much plumbing is involved, total feet & amount of fittings, valves, etc (mainly elbows create more restriction, raising the overall PSI, and if a Solar System is involved?

So, is 20 PSI normal, if you have a Solar System in an average inground pool in the backyard, then that could be about normal? If you have an Above ground pool with only a pump & filter, then that could be pretty high over normal.

The best thing is to backwash your filter very good, if possible use a sand filter media cleaner, available in most Pool/Spa Retail Stores. Follow the instructions on the label and proceed with the cleansing of the sand (media). Then when you turn everything back on to normal filter mode after the cleansing, make a note of the pressure! This will be "Your Systems" starting pressure. Take a "Sharpie" and write that number right on the filter tank. When the pressure climbs to 8-10 lbs over that starting pressure, backwash.

Jun 27, 2014 | Hayward SAND FILTER, PRO SERIES

2 Answers

Pressure psi filter

Is there water flowing into the pool? If the flow is there it may only be that your gauge is stuck. If not make sure the pump pot (where the basket is by the motor) is full of water before starting. If the pump has water + is running + no psi showing + no water flow, then you likely have an impeller issue. The pump needs to be opened up to see if the impeller is clogged or broken.

May 29, 2013 | Hayward SAND FILTER, PRO SERIES

4 Answers

When backwashing...sand discharges out backwash hose..

A little sand in backwash is not uncommon. Many packaged sand filter systems use pumps whose flow rates greatly exceed the flow capacity of the filter.(the more horsepower the better, right? - Wrong) If this occurs only during back flush the the pump is too strong or the sand level is above the beginning of the rounded top of tank. The sand level will eventually correct itself.

Aug 10, 2012 | Hayward SAND FILTER, PRO SERIES

1 Answer

I had a Smith 1HP pool pump with a square flange on my Haywwod sand filter. After 12 years it died. The pool shop sent me home with a Emerson 1hp., 1081 pool motor. It doesn't pull the water like the...

Sounds like there is an impeller problem. A 1hp emerson should be fine. Take it apart and recheck impeller and diffuser. I am assuming they gave you a new seal to replace with the motor.

Apr 26, 2011 | Emerson THREADED SHAFT UP RATED - 1.00 HP...

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Sand filter -what pressure should show on guage when filter is clean

There really is no certain psi on filters, every system is different so every psi will be also. Normally, start up psi will be between 8 and 15, but it could be higher than that as well. If the psi is higher than 20 after cleaning the filter, then depending on your equipment, restrictions in the plumbing, and pipe size, that may be normal.

If you have just cleaned the filter and the psi did not drop down, you may need to check the sand level, or hardness of the sand, in the filter. If you have had an isue with algae, it can grow inside the filter. This will cause the psi to go higher than normal and the filter will need to be cleaned out completely.

Sorry that I do not have an exact number for you, but "normal" psi is between 8 and 15.

Jul 09, 2009 | Hayward SAND FILTER, PRO SERIES

1 Answer

Sand Pool Pump dosent pump water round when on filter????

under the head that you spin for yor settings is a must take out all the bolts on the head to replace is called a spider should cost you about 8 0r 10 dollars at any pool place near you.

Jul 05, 2009 | Home

1 Answer

Accurate pressure for 2 hp ag hayward pool pump

the psi range is normal and will fluctuate with the cleaniness of the filter. Depending on wether or not you have a Sand filter or an Earth Filter, you should periodically backwash(for sand) and "bump" for the earth filters. You will notice that the psi will lower back down to the lower psi range. This indicates that your water is flowing freely with little resistance.

Jun 12, 2009 | Waterway Supreme Hi Flo Pump Dual Speed 2...

1 Answer

What is normal pressure at pool sand filter when pump is running?

This is normal pressure! As the filter becomes more dirty you will see the pressure get higher 15/20 it's time to backwash!

Jan 09, 2009 | Home

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