Store test results don't match mine

[PoolDoc]

The reason I haven't made the switch yet is I'm uncertain . . . Currently Bioguard is very easy and with little problems for me.

You can't mix and match the BBB method (what we teach) and the Bioguard method (what the store does).

Understandable.

Come back when you make up your mind, if you decide to go 'BBB'.

Good luck.