View Single Post
Old 02-23-2011, 10:47 PM
GpsFrontier GpsFrontier is offline
Senior Member
Join Date: Mar 2009
Location: Lake Havasu AZ.
Posts: 1,855

Ya, my recommendation General Hydroponics pH drops. Available at just about any hydroponics supply vendor, and runs about $7 depending on where you get it $8 tops. One bottle lasts me well over 6 months. I can make it last even longer by only filling the test vial about 1/4 the way with nutrient solution (instead of half way), and then all I need to use is about 2 drops of testing fluid. It never needs calibration, or batteries, and there is no chance of false readings that are common with electronic meters.
Website Owner
Home Hydroponic Systems
Reply With Quote