Just had my liner replaced and getting my pool back in shape and had water test at "big name" pool supply store to check myself and to do tests I don't have. All measures in good shape (FC-4, TC-4, Salt-3100, CYA-80, pH-7.6) according to them except Phosphates @ 2500, TA @120 (coming down last 2 days & rain tomorrow) and CH @ 120.
They hit me once before on phosphates and I spent a bunch on their product to reduce it, but see little at TFP on this as any real concern - should I worry? If so, is there a lower cost method or supply to reduce it?
They indicate a recommended range of 200-400 for CH, but I see TFP info saying lower is OK for vinyl - any concerns?
Thanks for any helpful advice!