Adding CH to brand new plaster pool in central Texas?

May 8, 2017
3
Austin, Texas
Our pebble/plaster pool in sunny central Texas is about 2.5 weeks old. I've been testing daily with TF 100 (see latest results, below). Is it suggested that we raise CH in a brand new pebble sheen pool? Or will it increase on its own (as I've seen others on the forum suggest)? CH is low and Pool Math (great app!) suggests our range should be 250-350. The pool store (I only went for testing, bought nothing) said that CH this low may void my builder warranty. But the builder didn't tell me anything about it at pool school (nor provide a test kit for it). TA is also a bit low but I've heard it may rise gradually on its own so so far I have not added baking soda to raise TA.

Other info: 22,000 gallons, currently using chlorine pucks but going to begin bleach method as soon as CYA raises to 40. I've already got some 10% bleach ready to go. The only additions (other than chlorine) I've made since filling are to control PH with muriatic acid as it tends to rise gradually each week.

Any advice/recommendations? THANK YOU!

Pool temp:85

FC: 2
CC: 0.5
PH: 7.3
TA: 50
CH: 150
CYA:20
 
Yes, you want to increase your CH initially or your new plaster will *lose* its calcium to the water. Take the calcium up to 250-300ppm.

Regarding what you've read in other posts: In some areas of the county with high evaporation rates (Dry hot places like Las Vegas, California) as the water evaporates the calcium remains in the pool and "rises" so we often advise them to be cautious. Or areas that have seriously hard water.

But your new pool *needs* calcium in the water to protect the walls from losing the calcium.

Holler back if you have other questions :)

Maddie :flower:
 
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.