Back From vacation

[bradjo]

Often, when you have very high chlorine levels it gives a false reading for ph. And if she added 4 gals of bleach in a 7,600 gal pool, then the chlorine was really high when she tested for ph. You can really do a lot of damage to a liner when you unintentionally take the ph below 7, and have the chlorine very high.

Hi, If you were referring to my post's suggestion about lowering pH it was supposed to mean test and adjust your pH prior to adding chlorine. Since the chlorine had already been added it was moot.
Jo

[mbar]

jo,
I'm sorry if you misunderstood, I was referring to the first post where poolmom06 said she was lowering her ph because it measured 8.2 - I was just making a note that when you have very high chlorine levels in the water the ph test can give a false high reading. It happened to me, luckily I remember reading that info on the forum and waited to retest my ph when the chlorine level came back down - it was normal. So if I had added acid when I thought my ph was over 8, I would have taken the ph way below 7, which is acidic and can cause damage.