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How much bleach are you using?
Quote from: bud16415 on September 04, 2017, 09:54:36 pmHow much bleach are you using?About 4 to 6 oz. depending on how long and if it just me or both of us in the tub.
This is unlikely but something that should be pointed out: When chlorine sanitizes (becomes hypochlorus acid) it is a high pH event. So if you have a high amount of chlorine in your water, or if you're testing too soon after adding your sanitizer, it could be a false-positive. This is very similar to what Hottubguy mentioned and he's likely the one with the most relevant answer to your question but I thought I'd add this too.
Quote from: The Wizard of Spas on September 05, 2017, 04:38:39 pmThis is unlikely but something that should be pointed out: When chlorine sanitizes (becomes hypochlorus acid) it is a high pH event. So if you have a high amount of chlorine in your water, or if you're testing too soon after adding your sanitizer, it could be a false-positive. This is very similar to what Hottubguy mentioned and he's likely the one with the most relevant answer to your question but I thought I'd add this too.This is a good point, my knowledge is less than most on this subject, but when I make a change on PH, I wait 2 days to check again.