Thankyou, I will purchase the meters as soon as I can. Looks like the site says pH calibration 6.01 and 4.01.
khazoth Reviewed by khazoth on . Six Plant Rubbermaid DWC Hello everyone, I currently have a 3ft X 2ft X 6in tray that I use for ebb and flow with a 14 gallon reservoir underneath it. I built the system with rubbermaid containers, and did not put much consideration into complete drainage. The fill/drain fittings are right in the middle, causing a small layer of water to remain for most of the day, every day. In the future i will place the fittings on one end of the tray, and have the other end slightly elevated, to force all water to drain to one Rating: 5