I have recently had a whole house water conditioning system replaced (acidic well water -- (6.4) ). I've got a Taylor k2006 test kit (which I have been using for 1 year on my pool) and the tap water is now reading way over 8.0 which is the limit of the kit. The company that installed the system is saying their testing is showing it to be in acceptable ranges (7.2-7.6) and the swimming pool kits are not as accurate as their 'laboratory'. This sounds like a load of BS to me. My question is what is the accuracy of the PH test (Phenol red r-0004 44ML 5 drops - new reagent) in the K2006 kit? I would assume it's fairly accurate, and the testing procedure is not rocket science so I can't imagine any issues with my execution.
Any insights would be appreciated.