My CH is only 40, I need to increase it. Several questions.
1. My pool is a Vinyl pool, does it need CH to be above 200? If not, will anything bad happen?
2. Where can I buy the cheapest material? (There was an old 2012 post for a link to homedepot, but it is not valid any more.)
3. What's the best way to apply the calcium chloride in the pool? In other words, through skimmer, pre-dissolve, or spread in the pool directly.
if there is any link you can refer me to, please do.
thank you very much.