Hello, we are struggling to keep our 10x20 kidney shaped inground pool from losing FC. One day it will be reading 3ppm for FC and the next day it will be down to zero. My husband goes to the pool store 2 to 3 times a week (don't even want to know how much money he is spending there) and comes home with instructions to do this and that and the next couple of days it's the same issue. Yesterday pool was crystal clear and good chlorine readings and this morning it was cloudy with zero FC with no swimming. He shocked the pool today and a couple hours later the FC was about 1ppm and the CC was about the same if not a little higher than the FC, which I know is an issue. The CYA was between around 20, maybe almost 30. PH was 7.2ish. This is our 3rd year with this pool and we had the same problem last summer and I'm afraid we're going to go through it again this year. It's a small pool, only 5' deep, sand filter, vinyl liner.
We will leave the filter running all night since he shocked it early this afternoon. Not in sun, cloudy day and there is a fair amount of shade on the pool from trees, which also causes debris in the pool as well. Normally filter runs 8-10 hours a day.
My questions are if the reading 2 hours after shocking was that low with FC will it get better after a few hours or not? Does having trees cause it to lose FC from buds falling in the pool? He vacuums it pretty much daily. I have read on other sites about a chlorine block and to slam with a non-chlorine shock? Is that possible we have this? I have read the ABCs of pools and understand FC, CC and TC. If my husband just shocked pool today and FC level is too low tomorrow, as well as CC too high what should we do? He has the hth test kit and he just purchased a Taylor K-2006 complete FAS-DPD chlorine test kit.
If anyone can offer some advise I would really appreciate it.
Karen
We will leave the filter running all night since he shocked it early this afternoon. Not in sun, cloudy day and there is a fair amount of shade on the pool from trees, which also causes debris in the pool as well. Normally filter runs 8-10 hours a day.
My questions are if the reading 2 hours after shocking was that low with FC will it get better after a few hours or not? Does having trees cause it to lose FC from buds falling in the pool? He vacuums it pretty much daily. I have read on other sites about a chlorine block and to slam with a non-chlorine shock? Is that possible we have this? I have read the ABCs of pools and understand FC, CC and TC. If my husband just shocked pool today and FC level is too low tomorrow, as well as CC too high what should we do? He has the hth test kit and he just purchased a Taylor K-2006 complete FAS-DPD chlorine test kit.
If anyone can offer some advise I would really appreciate it.
Karen