Inground, Vinyl, 23,000 gallons, pumps run 7X24
Drain 12" from pool and refilled using well water. Home has a well
Shocked with 8 gallons of CL
48 hours later
FC 2.6 CC 0.6 pH 7.5 Alkalinity 192 Hardness 365
Vaccummed algae from bottom
Pool is clearing up, seeing drain, and vac algae of bottom
What is next
1. Shock again
2. Add Liq CL to keep FC and start puks in skimmer
Can't understand why CYA is so high. Stopped using puks before I drained a few days back
Drain 12" from pool and refilled using well water. Home has a well
Shocked with 8 gallons of CL
48 hours later
FC 2.6 CC 0.6 pH 7.5 Alkalinity 192 Hardness 365
Vaccummed algae from bottom
Pool is clearing up, seeing drain, and vac algae of bottom
What is next
1. Shock again
2. Add Liq CL to keep FC and start puks in skimmer
Can't understand why CYA is so high. Stopped using puks before I drained a few days back