i was looking at my sandfilter and on the top it, it said "max psi 50".. when i started my pool this year, everything running good, the pressure gage reads 45 psi. when the sandfilter needs to be backwashed it gets to around 53psi. should i worry about my filter exploding, or is this a normal pressure amount?
p.s. everythimg seems to be running well. filter deatails are in the signature. Thanks for helping!