Calcium chloride is a salt that easily dilutes with water. Contact with water creates an exothermic reaction (it heats up). As a desiccant, it's sometimes used for removing moisture from air.
Goes bright red.Also, when you guys do a TA test, do you count a "red" change when it first kinda resembles red or when it goes bright red?
Do not do that. Use PoolMathwith the 1/3 CYA subtracted from 150 TA
When the pool water evaporates the calcium in the pool remains- you then add more water (which also has calcium in it) to replace what evaporated so the overall ch level in the pool will rise each time.How does evaporation add calcium?
CH: 100 -- that is not 'soft' water.That makes sense. I didn’t think the effect would be that great given how soft my tap water already is. This will be my first summer so I can monitor how much topping off is needed and I’ll test through the season. So what does everyone do after the summer season and CH spikes? Partial drain/refill?