I am also wondering what my psi on my pressure gauge should read, it never really reads above 5 except when I put it on recirculate.... then it can raise between 10 and 15, also I got algae when I had to replace some O-rings and everything was closed. super hot temps outside expedited this problem. I have treated the algae with a 60 algaecide, and used a sequestering agent to accumulate the algae debris, so I can vacuum.... however it is sooooo lightweight that, when I go to vacuum, that i just stirs it up in a frenzy, there is plenty of of suction .... and instead of the being able to vacuum large amounts of debris, it just pollutes the water and turns it green. I can stop, wait and let the algae debris settle to the bottom again, but I can actually vacuum up very little because of the powdery stir up problem, becomes like a green cloudy effect. and for some reason, running the filter is doing very little to change this, Let me also add that the suction from the pool to pump and filter is super strong as is the water input from filter to pool, as a matter of fact the water pressure coming into and out of the pool is scary strong when sand filter is set to filter, pretty pretty like backwash release water flow, it;s crazy, when filter is set on recirculate, the water flow seems to be what is should be, however the psi reads higher and can climb a little when it is on recirculate... The only reason I can figure the filter is not working on the algae debris is that it is soooooooo lightweight and powdery that it isnt being caught by sand filter and is just being released back into the pool... My question... does the PSI reading sound correct and what am I missing , why is my sand filter not cleaning this algae debris from my pool, I can run the filter on filter for over 24 hours and see know difference but the water pressure from the pump and filter as well as the suction going from the pool to the pump and filter is so strong it IS STIRRING UP the lightweight powdery algae debris, so whenever the pump is running the dang algae debris is stirred up, water is nothing more than a green tinted cloudy mess.
Is something wrong with my filter, is something hooked up wrong, backwards.... would a clarifier help this or would more sink and sweep or sequestering agent make the algae debris heavy enough to not "poof" up into the water when trying to vacuum ... AND there is a possibility that my EX-husband did not put enough sand in the filter tank, without emptying it is there a way to measure the height of the sand against the tank size or space between top of sand and top of tank. Incidentally, when the debris settles to the bottom of pool the rest of the water is extremely clean and just sparkles, i am loosing my mind and patience. My pool is an above ground, 18 ft x 52 inch, my pump is a 3/4 magnetek and my sand filter is a pentair, tagelus triton Ta 35d ....I would appreciate any and all help suggestions.. Husband is long gone so there is no way to ask him what he did...Please help???????