I had to replace the liner so I'm getting my water in order but didn't realize I as out of R-009. The label just says sulfuric acid .12N, is this the same stuff you'd get at the hardware store? I can't get the Taylor brand stuff until Friday.
If you have the other tests, you can just skip the acid demand test and just use PoolMath to calculate how much muriatic acid to add based on your pH/TA/CYA.
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