Hello out there. I drained the pool and power-washed with a bleach mix. I also changed the bulbs and the bacquaGOOP was everywhere. I spent the majority of Saturday power washing as I noticed little pink bits sticking to the wall. Pool will be full by Thursday...running my well for 4-5 hours at a time with success. I alos learned my pool has 18K gallons vs. the 25K everyone told me before. So the quest ion is, do I truly have to change the sand or can I chemically treat it? I cannot get the threaded multi-port off for the life of me....its supposed to be hand tight. If I absolutely have to change it I will hire it out. Please advise.

Regards,

C. Chase