Backstory: Had a brand new pool with algae in it. We could waste out everything at the bottom of the pool and within a half hour, we would have more sand/algae right back on the bottom. It drove it us nuts for the entire summer.
Now: This spring (2022) I find TFP, and we run through a series of tests to determine that we feel it is in fact algae. Our CYA was insane (160+) so we drained the pool and got that down to 50. We cleaned out our filter, made sure nothing was broken and replaced the sand, (note we did this before starting the SLAM though - maybe a week earlier). We are now in the SLAM process. So far, I think its working very well! Each day we have had less and less of the what we believe to be dead algae on the bottom of the pool. We have been doing it for a week today. FC has been at or around/above 20, CC has been fairly consistently 0 with only a couple of days at 0.5. I haven't checked anything else as I've read that the rest of the tests are invalid right now.
Today is the second day in a row where we have passed the overnight free chlorine loss test (OFCLT). There is an extremely minimal amount of the dead algae/sand looking stuff in a few cracks in the pool. So little that it was hard to see at times but it is there. We are thinking/wondering if it is mustard algae and, if so, if would make sense to move into the mustard shock level now that we are 99.5% complete with the regular SLAM (CC was 0.5 or 0 all days), but we have had an extremely minimal amount of dead algae in the morning yesterday and today. Note that it has been a lighter and lighter amount of dead algae each day and the past 3 or 4 days we have had this minimal amount. We have been vacuuming and brushing everything, every nook and cranny each day. One picture is the day it was filled, the other picture is today with a faint line of what we believe is dead algae.
Would Mustard SLAM/Shock level finish things up for us? Thanks.
Now: This spring (2022) I find TFP, and we run through a series of tests to determine that we feel it is in fact algae. Our CYA was insane (160+) so we drained the pool and got that down to 50. We cleaned out our filter, made sure nothing was broken and replaced the sand, (note we did this before starting the SLAM though - maybe a week earlier). We are now in the SLAM process. So far, I think its working very well! Each day we have had less and less of the what we believe to be dead algae on the bottom of the pool. We have been doing it for a week today. FC has been at or around/above 20, CC has been fairly consistently 0 with only a couple of days at 0.5. I haven't checked anything else as I've read that the rest of the tests are invalid right now.
Today is the second day in a row where we have passed the overnight free chlorine loss test (OFCLT). There is an extremely minimal amount of the dead algae/sand looking stuff in a few cracks in the pool. So little that it was hard to see at times but it is there. We are thinking/wondering if it is mustard algae and, if so, if would make sense to move into the mustard shock level now that we are 99.5% complete with the regular SLAM (CC was 0.5 or 0 all days), but we have had an extremely minimal amount of dead algae in the morning yesterday and today. Note that it has been a lighter and lighter amount of dead algae each day and the past 3 or 4 days we have had this minimal amount. We have been vacuuming and brushing everything, every nook and cranny each day. One picture is the day it was filled, the other picture is today with a faint line of what we believe is dead algae.
Would Mustard SLAM/Shock level finish things up for us? Thanks.
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