puffinpenguin
Member
Hello first port looking to find some info about a sunleaves TDS meter and what the tds should be when adding nutrients. I was wondering if anyone knew if you need to calibrate the TDS meter like a pH meter. Also wondering about the tds. At the moment the TDS of the water being used (tap water) is running at about 500 before adding nutes. If you require more info it may take a while seeing that this is not my grow but a friends. Thank you all before hand have a great day