T.C. Bosby
Well-Known Member
Make sure you pick up a PH meter, a PPM meter, and calibration fluid for both. These are absolutely vital for DWC.
I honestly have to say I've had the best results with the yellow/red $10 PH meters, they have performed as well or better than most of the >$50 ones I have had in the past. Get 2 $10 ones and use them both all the time. Re-calibrate them when they don't agree, when you can't get them to match, it's time to replace one.
PH Meter (buy two):
http://www.amazon.com/dp/B00N7432II
PPM Meter (buy one):
www.amazon.com/dp/B002C0A7ZY
Thank you for the links and info!