adding calcium to vinyl pool

barryjmizell

Member
Jun 9, 2019
14
Poplarville, MS
It is best to add calcium chloride in small batches so you can be sure you get it fully dissolved when you broadcast it in the deep end. Brush well.
Hello there. After purchasing Calcium Chloride to adjust my CH level per the Pool Math app, I have read on here where it is not absolutely necessary to monitor ones CH level in a vinyl lined pool like mine. What are your thoughts on this? Just thought I would do a little research on here before dumping the 13lbs of product to bring my CH from 125 to 175.
 

Richard320

TFP Expert
LifeTime Supporter
Jan 6, 2010
22,069
San Dimas, CA (LA County)
Hello there. After purchasing Calcium Chloride to adjust my CH level per the Pool Math app, I have read on here where it is not absolutely necessary to monitor ones CH level in a vinyl lined pool like mine. What are your thoughts on this? Just thought I would do a little research on here before dumping the 13lbs of product to bring my CH from 125 to 175.
You mis-read that. You should still monitor your CH, in case it goes high on you. You might need to shift pH or TA or replace some water to prevent scaling.
 

gorocket1981

Well-known member
Jun 8, 2018
127
Montreal, Canada
I have a vinyl liner but I also have an heat pump. I have been told that it was important to maintain calcium at 200+ to prevent damage to metal inside the heat pump. Does this make sense? Is it real?
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
23,443
Laughlin, NV
No. But the manufacturers still follow the old boiler standard.

If you want to strictly follow their standards, add calcium. Won’t hurt anything.
 
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