This is our third summer with an inground 20k gallon pool. The first two years we didn't have this problem but this year we had to put a ton of well water into the pool (like half the pool water) since then, we have a constant cycle: shock pool, it's brown, flock it to get rid of the brown, vacuum it out, add more water (filtered now but that doesn't seem to be helping), then again we have to shock as algae starts growing and I'm told we have to shock the water regularly anyhow, then it's brown again.
We tried a metal sequestrant (two bottles of it), it worked, the pool was mostly clear, then we had to fill more water (we had a leak, it's found and fixed) and when we shocked it, it went brown (even though we have a filter), so I made sure the chlorine was 0 (which was weird as it was right after we shocked) and put in more Metal Out, but nothing happened, so today I add PH decreaser and still nothing, brown pool water.
On top of this, we had replaced the sand in our filter, about 6 weeks ago and when I try to backwash it's still clear. Although to be fair we gave up on the pool for a couple of weeks and weren't using the filter. We've spent hundreds on "opening" the pool this year and it's never been really clear yet. Any thoughts you can share to help me out?
We tried a metal sequestrant (two bottles of it), it worked, the pool was mostly clear, then we had to fill more water (we had a leak, it's found and fixed) and when we shocked it, it went brown (even though we have a filter), so I made sure the chlorine was 0 (which was weird as it was right after we shocked) and put in more Metal Out, but nothing happened, so today I add PH decreaser and still nothing, brown pool water.
On top of this, we had replaced the sand in our filter, about 6 weeks ago and when I try to backwash it's still clear. Although to be fair we gave up on the pool for a couple of weeks and weren't using the filter. We've spent hundreds on "opening" the pool this year and it's never been really clear yet. Any thoughts you can share to help me out?