Have one of the liquid test kits. Tested my tap water with it and it came out in the 7.3-7.5 range, my meter said 7.4. Reads 7.0 in the 7 calibration solution, and 4.0 in the 4 calibration solution. My liquid test turns aqua with anything over 7.5 and thats what the RO water came out as.
gbf4ever Reviewed by gbf4ever on . New RO system raising ph Just picked up a 100 gpd ro system. Ran it for about 40 minutes first to clean it out like the instructions said, then filled up a 5 gallon bucket. Ph'd the water after and the filter raised it from the 7.3-7.5 range to 10. Is this normal? Do I just need to let it run awhile to clean it out? Rating: 5