I have read several posts from others, and need to ask what I may be doing wrong. MY 20X40 VINYL LINER POOL HAS BEEN CLOUDY EVER SINCE I OPENED IT LAST SPRING. SAD TO SAY, I WORKED WITH MY POOL SERVICE COMPANY I'VE HAD FOR MANY YEARS; NO RESULTS, AND IN JUNE I REPLACED HIM WITH ANOTHER. THIS NEW COMPANY RECOMMENDED REPLACING THE SAND IN MY HAYWARD SAND FILTER (5 YEARS OLD), WHICH I DID. EVER SINCE I HAVEN'T SEEN THE PRESSURE INCREASE ON THE GUAGE AT ALL (IT'S AT 15 LBS), DESPITE RUNNING THE FILTER FOR THREE DAYS , 24 HOURS. NEXT, THEY SAID TO ADD 12 BAGS OF SHOCK TO BREAK A "CHLORINE LOCK" (POOL IS 36000 GALLONS). AFTER RUNNING THE PUMP FOR THREE DAYS, WATER IS CLEAR 4' FT DOWN, STILL CLOUDY AT THE DEEP END. I'VE HAD THE WATER TESTED MANY TIMES' EVERYTHING IS WITHIN ALLOWABLE LIMITS, SO, VERY GOOD. OMG- I just noticed this post is in caps- sorry!
after reading the posts here, I plan to add socks to the skimmer basket, (how long should they be installed before adding DE?), then add the DE as suggested. I am hoping to clear the water before closing the pool for the winter. Any suggestions will be most appreciated.