Recent content by dmc

i just got this used $50 meter but it loses it calibration every day. are there household items that have a set ppm or ph that i could calibrate it to? like for example is there a set ph for hydrogen peroxide or pure lemon juice or something like arrowhead water? haha.

thank you so much!! (your system motivated me to go hydroponics ^.^)

thank you for the help!

bump for justice!

Hi. this is my first post :P. ive been reading up on this website for about 4 months and ive gained a lot of information... THANK YOU!! anyway.. im still fuzzy on some of the specifics of hydroponics i have a 2ft 8.5in x 1ft 8in x 1ft 6.5in 37 gallon rubbermaid tub. i just wanted to know...