- Aug 17, 2021
- 89
- Pool Size
- 21000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
THis is our first year as pool owners. I had posted several months ago about successfully completing a SLAM, and then posted a update thinking the algae came back, but then convincing myself it was just dirt in the liner seam. Finally two weeks ago, I came to the hard realization that it was not dirt and that the stuff in the seam was indeed algae. So, I started another SLAM, brushing, testing, adding bleach, testing before I went to bed and retesting first thing in the morning amd repeating for over 7 days unitl I thought all was well. I passed the OCLT and even kept the FC up at SLAM level an extra day. Only to wake up one morning last week to see algae collecting in the same spot.
I had to take a break both mentally and physically from the SLAM. It was just really discouraing to me to the point of thinking getting a pool was a bad decision. Over the last few days the FC was slowly drifting down and the dead algae settling had not gotten any better or worse. I decided the last night to restart the SLAM with the starting FC at 13.5. I vaccumed the dead alage to waste and added the recommendation dose of CalHypo(this time) to get it up to the SLAM level. I actually felt good. I actually dreamed that when I woke up there would be dead algae covering the floor. Well, I woke up this morning to go check and your guessed, it, the dead algae on the floor was worse than it ever was and in more spots. One section it was about 4 inches wide.
My Pre-Slam Data:
FC: 8
CC: 0
CYA: 70
Ph: Dropped down to 7.4
TA 80
CH: 130
I had to take a break both mentally and physically from the SLAM. It was just really discouraing to me to the point of thinking getting a pool was a bad decision. Over the last few days the FC was slowly drifting down and the dead algae settling had not gotten any better or worse. I decided the last night to restart the SLAM with the starting FC at 13.5. I vaccumed the dead alage to waste and added the recommendation dose of CalHypo(this time) to get it up to the SLAM level. I actually felt good. I actually dreamed that when I woke up there would be dead algae covering the floor. Well, I woke up this morning to go check and your guessed, it, the dead algae on the floor was worse than it ever was and in more spots. One section it was about 4 inches wide.
My Pre-Slam Data:
FC: 8
CC: 0
CYA: 70
Ph: Dropped down to 7.4
TA 80
CH: 130
- Why would the dead algae be worse than ever after adding the Cal-Hypo?
- How long can you SLAM before risk damaging equipment? 28PPM FC cant be good over a period of time
- How can you vaccum to waste without losing so much water than it goes below to skimmer? Do you just keep replacing the water?
- Should I pause the SLAM and let everyhting settle down and make sure the Ph is back normal and restart later?
- Any other thoughts?
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