Over the past few months, Ive been trying to figure out why my pool flow / pump output has decreased a lot since I first bought this house with my pool. At the end of last summer, I did replace the sand in my sand filter and installed a new primary pool pump with the same one that came with the system when I bought the house.
I have checked all of the obvious stuff:
-clean skimmers, pump basket, blockage/build up in pump
-I've tried switching to recirculate mode to avoid the sand filter
-I've tried only pulling from skimmers and then only pulling from main drain to see if that changed anything.
I have had some pebbles from my spa start to come loose last year so I am not sure if they are stuck somewhere in the system causing flow issues. Some of them got into my multi valve on the sand filter making it hard to turn it so I had to remove that and clean the pebbles out.. so wondering if that is causing lot flow issues somehow.
My sand filter PSI seems to stay at 10psi before / after backwash. It is a 500lb sand filter and when I replaced it, I did put in a full 500 lbs.
Another issue I notice which may be a contributor is when I run my aux pump which is used for the pool cleaner... after this runs for a while, my main pump flow gets even worse and my spa overflow slows to a trickle.
From when I first got the pool, i'd guess my current flow is 20-40% of what it originally was just by judging the overflow from the spa waterfall.
Would appreciate any advice you have in helping me figure out the issue in my system. thanks.
Few pics of my system:
I have checked all of the obvious stuff:
-clean skimmers, pump basket, blockage/build up in pump
-I've tried switching to recirculate mode to avoid the sand filter
-I've tried only pulling from skimmers and then only pulling from main drain to see if that changed anything.
I have had some pebbles from my spa start to come loose last year so I am not sure if they are stuck somewhere in the system causing flow issues. Some of them got into my multi valve on the sand filter making it hard to turn it so I had to remove that and clean the pebbles out.. so wondering if that is causing lot flow issues somehow.
My sand filter PSI seems to stay at 10psi before / after backwash. It is a 500lb sand filter and when I replaced it, I did put in a full 500 lbs.
Another issue I notice which may be a contributor is when I run my aux pump which is used for the pool cleaner... after this runs for a while, my main pump flow gets even worse and my spa overflow slows to a trickle.
From when I first got the pool, i'd guess my current flow is 20-40% of what it originally was just by judging the overflow from the spa waterfall.
Would appreciate any advice you have in helping me figure out the issue in my system. thanks.
Few pics of my system:
