I have a little problem that perhaps have some simple explanation.
According to poolcalculator to lower PH in my (50000l) pool by 0.2 I need to add 200ml (34%) of muratic acid. However in reality I need to add 500ml to get the desired effect. The pool is definitely not twice as big . So what am I doing wrong?
The label on the acid bottle says: "hydrochloric acid 32-34% w/w".
how long does it take the acid to dissolve in the pool and affect the PH?
my PH seems to be climbing up by 0.2 in 10 days. It is normal isn't it?