What's another recommended method of testing chlorine levels? My kit is down to about 1-2 more uses R-0870 and I'm in the process of shocking. Is there anything worth buying at an LPS or WalMart or anything?
Dumb question I'm sure, but this is only my second season and I've only ever used the TF100 test kit.
Dumb question I'm sure, but this is only my second season and I've only ever used the TF100 test kit.