Bought house with pool a few months ago - managing a pool is new to me. Has been winter season (in Arizona, unheated) - so hadn't done much with it (adding a stabilized chrlorine tab here and there every week or so). Water has looked really good/clear. With swimming season coming around, I got water tested at pool service shop about two weeks ago with following readings:
FCL - 21.3
TCL - 21.3
PH - 7.0
ALK - 44
Hardness - 677
Iron - 0.0
Phosphate - 4135
Calculated CYA - 158
Over a week or two (not altogether) added Alk Up, Chlor reducer, and NoPhos. Totally removed floater with stabilized chlorine. I am brushing bottom and skimming very regularly. New pool readings as of readings today...
FCL - 23.35
TCL - 23.35
PH - 7.3
ALK - 96
Hardness - 677
Iron - 0.1
Phosphate - 3585
Calculated CYA - 149
Not sure how FCL/TCL got higher, with removal of tabs. Pool store person is saying that CYA takes forever to come down on its own, and that would always need to run chlorine level super high for free chlorine to be effective. No signs of algae. Recommended more Chlor reducer - and potential to need to drain pool. Maybe prior owner super chlorinated to keep looking pristine for home sale? Also, there is industrial strength phosphate reducer (last round was residential/less concentrated stuff). So, looking for advice if should just drain and start over (pool store has draining service, or could look to perform self), keep trying add-ins, or something else?
Thanks!
FCL - 21.3
TCL - 21.3
PH - 7.0
ALK - 44
Hardness - 677
Iron - 0.0
Phosphate - 4135
Calculated CYA - 158
Over a week or two (not altogether) added Alk Up, Chlor reducer, and NoPhos. Totally removed floater with stabilized chlorine. I am brushing bottom and skimming very regularly. New pool readings as of readings today...
FCL - 23.35
TCL - 23.35
PH - 7.3
ALK - 96
Hardness - 677
Iron - 0.1
Phosphate - 3585
Calculated CYA - 149
Not sure how FCL/TCL got higher, with removal of tabs. Pool store person is saying that CYA takes forever to come down on its own, and that would always need to run chlorine level super high for free chlorine to be effective. No signs of algae. Recommended more Chlor reducer - and potential to need to drain pool. Maybe prior owner super chlorinated to keep looking pristine for home sale? Also, there is industrial strength phosphate reducer (last round was residential/less concentrated stuff). So, looking for advice if should just drain and start over (pool store has draining service, or could look to perform self), keep trying add-ins, or something else?
Thanks!