Yes that's correct - I bought the HTH kit to tide me over until Ben's kit arrived (which it did). It has the OTO test for chlorine so you're just getting the total chlorine reading.Originally Posted by aylad
Ben does sell an FAS-DPD test kit on the poolsolutions site for chlorine which might be a good supplement to the HTH kit if you don't want to spring for the whole PS234.
Peter
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