Filter pressure problem

[RH60]

AG pool with a 1 HP Hayward matrix pump

Last year got a new sand filter, Hayward 18"

Last summer it ran at about 15 Psi after backwashing.
Starting this season I noticed it runs at 25 psi.
Everything seems to work fine. Could I have a problem or maybe the gauge went off over the winter.

Thanks for any info

PS: have a Lomart skimmer and next time I replace the liner will replace that with the Hayward skimmer. Does anyone sell a repair plate with the cut out already in it, to repair a AG pool wall?

 

[AimeeH]

I would be suspect of the gauge. I seem to need a new one every year almost and have driven myself batty thinking something else was wrong when pressure was abnormal.......only to replace gauge and see it was fine. I actually bought 2 last time I went to pool store for one.

I don't know about the parts question but Inyo Pools online has a lot of pool parts.

 

[mas985]

Does your filter gauge go to zero when the pump is off? Have you backwashed/cleaned the filter?

 

[RH60]

Does your filter gauge go to zero when the pump is off? Have you backwashed/cleaned the filter?

Yes does go to zero. Been running it over a month this year so have backwashed a few times. I think its working ok. No sand coming out. Acts normal when I backwash.

 

[mas985]

But after the backwash, does the pressure go back to 15 PSI?

What is the make/model of your pump?

 

[RH60]

But after the backwash, does the pressure go back to 15 PSI?

What is the make/model of your pump?

It did last year. This year after the winter it goes to 25 PSI.

1 Hp Hayward matrix pump AG

 

[mas985]

I would backwash now and see if it goes down.

 

[RH60]

I would backwash now and see if it goes down.

Nope. Did backwash today, and still the same as last week and week before.

 

[mas985]

Sorry just noticed the filter type. Cartridge filters don't normally backwash so what exactly did you do?


Nothing else changed since last year?

 

[RH60]

Sorry just noticed the filter type. Cartridge filters don't normally backwash so what exactly did you do?


Nothing else changed since last year?

Nothing changed since last year. But it is a sand filter
Hayward S180T filter

 

[mas985]

Sorry, I was going by your signature. But since it is a sand filter and assuming your gauge is good, it could be the multi-port valve or maybe something internal that is causing the higher pressure.