Got a new midnight blue finish with white patches appearing more and more every week. Diamond brite was mixed with city water which is not that all great but pool was filled with drinking water trucked in.
Info: around 5,000 gal pool
pH: I think if I remember it was 7.6 or 7.8
I'm thinking the CH is being sucked out of the new plaster into the water. Maybe settling on the new finish? not really sure why we are getting the white patches now after the finish has been in week or so. seems to be getting worst. can this be reversed with proper water balance?
also need to add CalHypo can I add via skimmer? in small amounts of 1lb at a time? can't get CH on the island but can get CalHypo so thought I'd try using it but dont want stains or any problems.
Thanks for any help!