12-21-2006, 03:03 PM
Join Date: Jun 2004
Location: Somerdale, NJ USA
I use mostly AP kits. Like some of the above responses, they are not the most accurate but I use them more for reference (did it go up, did it go down) than anything else. And after a while I find that pH is about all I have to test for and even that is only occasionally for calculating CO2 PPM when adjusting bubble rates.
If you start using the EI dosing regimen and doing a weekly 50%er there really is no need to test much IMO.