Hot Tub Forum
Original => Hot Tub Forum => Topic started by: brentp on November 26, 2007, 12:59:32 pm
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Ok - curious to know how those with Bromine SPAs test for PH with a Taylor test kit. I have always gotten very high PH readings. I simply add 5 drops of R-004 (Phenol Red) to the sample. Reading is usually off the scale on the high sige.
I had the tech out from the SPA dealer today on different issue and mentioned this to him. Using my kit, he added 5 drops of R-005, swirled, then added 5 drops of R-004. Reading was ~ 7.2. He then used one of his strips, and got ~ 7.4. He said you need to neutralize any chlorine in the sample. Problem is; R-005 says it has < 1% of an acid, so I would think this would skew the results. He then tested with my method and got > 8.0.
This got me wondering, . . . what do you do to test for PH (w/Bromine).?