I am a new pool owner of an older pool. Just bought house and so I don't have a lot of past maintenance info on pool & equip, but I'm assuming it wasn't kept up. So far, I've emptied several wheel barrels of leaves from pool bottom, shocked & balanced chemicals. The pool chemicals have only been balanced for the past few days. My first concern is that the suction in both skimmers seem very low. I've already used the bladder thing on the hose and flushed water in both skimmer lines to the pump, and also from pump to skimmer. I will note that when I close two of the valves, I do get good suction to manually vacuum from one of the skimmers. My pool water is Blueish and cloudy- I can see the shallow end bottom, but not the deep end bottom at all. Also, the pressure gauge on sand filter, which does go to zero when off, only changes by a 2-3 psi after backwashing(dirty pressure of 22, clean pressue 19-20). Does all of this point towards the sand needing to be replaced?
Here are my numbers:
FC 1.1 (I'll be adding chlorine tonight)
TC 1.6 comb chl .5
Any and all advise is greatly appreciated!