So, we were having issues with persistant algae on the bottom of the pool (for years) However, the water was still crystal clear. We went several days without a pump because of a broken hose. The pool had been vacuumed right before the hose broke so there was no algae on the bottom at that time. As the days went on, I ran a sub pump through a bucket with filter media just to keep the water from getting stagnat, and the water was starting to get a little cloudy, but still could see the bottom just fine. In fact, the algae did not return to the bottom for the entire time the pump was off. Once we got the pump running again, the algae was right back on the bottom of the pool. That's when we decided to change out the sand in our filter. This, we thought, would give us the ever-elusive perfect pool. Apparently, a big mistake. We proudly turned our freshly-sanded pump back on, shocked the pool and went to bed. In the morning, I expected to wake up to crystal clear water with dead algae on the bottom, but it looked exactly the same as it had before I shocked it. Later that afternoon, my husband vacuumed the pool to the filter. That's when it turned into a swamp...I can't see the bottom no matter how hard I look. I backwashed the filter and there wasn't anything of significance that I saw in the sight glass. The return pressure is great. So what is happening? Does my new sand need to be "seasoned" properly or something? 
Those are laughing tears of insanity, because I spent my entire weekend babying that f'n pool, and this is the thanks I get?! Please advise. Thank you!!
Those are laughing tears of insanity, because I spent my entire weekend babying that f'n pool, and this is the thanks I get?! Please advise. Thank you!!
