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    How do you know what the psi should be?

    My pool is 16 x 38 fiberglass, 3.5 to 6.5 deep. (I don't know the size of the pipes.) The psi has been at 20-22 since opening. I thought it was at 12 last summer but can't really remember. The gauge goes to zero when off so I don't think it's a bad gauge. Is 20 psi too high? If it is, what does...
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    TF 100 results way off (long)

    I received the TF 100 last week and just used it for the first time. I still have my Taylor K2006 from last year but was out of the reagents to do the CH test, which was the first thing I used in the new TF 100 kit. The first thing I noticed was the drops came out super fast and super small! I...
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    Can I do an ascorbic acid treatment in the rain?

    I started a stain treatment yesterday with 2lbs of ascorbic acid, 1 qt of algecide and 1 qt of Jacks Pink Stuff. However, the FC was at 2.5 (I was impatient) and I still have stains even though I think they are lighter. Now, it's 8:15 pm and raining. However, my FC is 0, PH is 7.2, ALK is 70. I...