High Filter pressure

[mkohr]

In the past years my filter pressure was normally around 20 PSI. This year i have been running around 26-27 psi which usually means its time to backwash at this pressure. My issue is the filter doesnt need back washed, i tried that and the pressure wont go down. I actually backwash about 10,000 gallons thru it when i opened the pool this was a partial drain and fill to bring mu CYA down ... My initial thought was maybe last year the pool company i had close the pool didn't do a good job cleaning the filter. So yesterday a took it all apart and thoroughly cleaned all the fins.... put it all back together and still 26 psi before adding any DE. It appears as if the flow and pressure on the return is the same it always was in past years.
Any ideas from the experts

 

[Azgirl71]

My guess is your clean pressure changed. That happened to me too. My clean pressure started at 2/3 psi and now it is 5/6 psi. I just check the return flow and backwash when it slows.

 

[n240sxguy]

Does it quickly go to 0 when you turn the pump off? May be a bad gauge. The easiest thing would be get another one to verify the pressure is really that high.


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[mkohr]

It does go to zero when I turn off the pump. I was thinking of trying a new Gauge too.


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[pooldv]

tftestkits.net has very nice gauges for reasonable price.

 

[AimeeH]

Your problem sounds like mine. I went through 2or 3 of the "cheaper" gauges from the nearest pool store and each time I got a new one the pressure would read my normal 12 but would start to drift up after winter and it was the gauges (confirming I didn't need to backwash etc). I bought the one from tfteskits this year. Happy so far.

 

[prs]

If you put smaller eyeballs in your returns that would cause a pressure increase. Also check to see if you have anything stuck behind an eyeball that might be reducing flow/increasing back pressure.

 

[duraleigh]

Think back to see if you have added or modified ANYTHING on the pressure side to restrict the flow. If your filter is functioning as it was last year, about the only thing that will make the psi go up is some other type of restriction on the pressure side.

Your pump is a little high for your setup but 20 would be about right and 26 sounds too high. Something is restricting the output.

 

[mkohr]

The only thing I did was cut in a tee for the stenner pump injection.


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[n240sxguy]

That shouldn't really restrict flow or increase the pressure.


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[mkohr]

New pressure gauge came this am from Amazon .... Problem solved! [emoji16]


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[AimeeH]

I had a hunch.