I have several of these big white hard (not brushable) marks on my pool floor. I assume they are calcium nodules since my CH has been very low (160) for too long. I will increase my CH to 350 using a red bag of Joe Melt.
If these are indeed calcium nodules, should I just sand the nodules down and fill the pin hole with epoxy? Anyting else I should do?
Thanks in advance!
PH: 7.4
Chlorine: 6
TA: 70
CYA:70
CH: 160
If these are indeed calcium nodules, should I just sand the nodules down and fill the pin hole with epoxy? Anyting else I should do?
Thanks in advance!
PH: 7.4
Chlorine: 6
TA: 70
CYA:70
CH: 160