Ben

I am using the OTO (yellow drop) test and just purchased a fresh bottle when I had posted the latest results. And the 9.5 gals I applied the other night was tested with the OTO test. The test kit I have been using is similar to the DPD-FAs kit. It is from HTH (HTH 6 way Test Kit) and test for TC/TB, pH, TA, TH, and CYA. As said I just purchased a fresh bottle of OTO.

The algae is no longer an issue, it is all gone - been 4+ days with no sign, other then some residual debris that I vac when spotted...

I can do the bleach again..

You said 10 gal, is 9.5 good, I get best value on 6% plain bleach in 1.35 gal jugs and 7 jugs gives me that.

I'll post my results as indicated.

Edd