drdodge29 Well-Known Member Jan 16, 2009 #1 So ur Air pump has to be turned off for u to check ur TDS? Once I turned my pump of I got an accurate reading.
So ur Air pump has to be turned off for u to check ur TDS? Once I turned my pump of I got an accurate reading.
R runsfromdacops Well-Known Member Jan 16, 2009 #2 just cant have any air in the end of the prob. i take my readings from the corner of the tub.
