We took the cover off our above ground pool yesterday and the water was dark green. We hooked up all the hoses and replaced the sand in our filter. The pressure gauge reading when everything is OFF is at 45 and when ON is at 60. Last year it was at 20 in the OFF position and maybe 30 when filter was running. I don't know if this is a gauge issue and I am afraid to run the filter to address my green water.
If this sounds like a gauge issue, how do I address the water? I tested it with a test strip and the reading for chlorine and Ph is basically nothing. How to I raise the Ph and when should I shock the pool? I'm at a loss what to do.