- May 23, 2015
- 24,575
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
15 FC this morning. definitely need to slam...
Going to Foodtown to go pickup a few cases of bleach.
I took care of my parents pool all growing up, fresh water, and never had an issue like this. Could it be that a plaster pool just allows the algae to Harbor because of its pouressness nature? BTW I have brushed my walls and floors like a bandit the last time I slammed and I just do it from time to time anyway...
Yes, a SLAM is now indicated. Be sure to lower your pH first to 7.2 before starting the SLAM. You may need to let your FC come down to 10ppm before you can get a good pH reading.
The only time plaster versus vinyl is an issue is if you get black algae since it is very aggressive and tends to grow into surfaces. I don't think you reported having that. The pool surface itself does not determine if algae will grow, maintaining the FC at the proper FC/CYA ratio is your biggest determinant. Once you get your water cleaned up with the SLAM (be sure to follow the three exit criteria closely), then you may see better performance from your SWG.