Having to backwash sand filter daily. Intex 20ft x 52" pool.

[Bmschoen]

I’m having to backwash my Intex sand filter every day. I’m not seeing anything much come out when I backwash. Even after backwashing for a minute and rinse for a minute I’m still in the yellow. It’s only a week to 10 days old. New HTH sand at that time. Any ideas? We have an intex 20ft x 52" pool. Picture of the filter I have and my gauge attached. When brand new, my gauge was running a little lower but clear at the top of the green. I can tell my flow has been reduced.

Just got my TFT-100 test kit yesterday and plan to test today.

 

[Texas Splash]

Are you sure the gauge is still good and didn't get damaged from winter? Does it fall to zero when the system is off? If the gauge is good, I would go back to water chemistry. Excessive organics can easily overwhelm the filter and you can't see it. For that, I would ask to see a full set of water test results from either a TF-100/Pro-Series test kit or Taylor K-2006C.