- Apr 15, 2016
- 35
- Pool Size
- 17500
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Ideas about this scale
- Thread starter ar26pt2
- Start date
- May 3, 2014
- 59,444
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
- Apr 15, 2016
- 35
- Pool Size
- 17500
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
- May 3, 2014
- 59,444
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Might be calcium nodules.
www.troublefreepool.com
Calcium Nodules in pools
What are calcium nodules? In swimming pools and spas, they are small mounds, bumps, deposits, or “slag” piles of calcium carbonate which are formed from material that has been released from the plaster. The small calcium nodules are rough to the touch, hard, and generally gritty. Nodules may...
www.troublefreepool.com
- Apr 15, 2016
- 35
- Pool Size
- 17500
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Yep that has got to be it! For completion sake:
8 vertically oriented nodules just noticed this season. Below water line. These react with muriatic acid. No other scaling at pool or SWG seen.
FC 5.5
PH 7.4
TA 90
CH 230
CYA 40
CSI -0.39
8 vertically oriented nodules just noticed this season. Below water line. These react with muriatic acid. No other scaling at pool or SWG seen.
FC 5.5
PH 7.4
TA 90
CH 230
CYA 40
CSI -0.39
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