timbruun Posted September 5, 2009 Report Share Posted September 5, 2009 So i just got a water conditionner installed. Figured I'd compare the tap to the 2 tanks i have. Only things i have a problem with are out of the tap my pH is about 7.5 and tanks is 8.5, which i'm pretty sure is co2 coming out of the water because it does the same while sitting in a pail for 48 hours. but i bought a kh and gh api test kit and i'm not sure if i'm doing it right. it took 25-28 drops from the kh to turn the water from dark blue to full yellow in tanks and tap. and the gh took 5 drops in tanks and tap. but the gh wasn't really that green, just a pale green. but it was somewhat a pale green after the first drop. does it need to be a dark green? thanks in advance. Quote Link to comment Share on other sites More sharing options...
randy Posted September 5, 2009 Report Share Posted September 5, 2009 Not sure about the API kits but for the nutrafin kits KH & GH you add drops till you see a color change (darker or lighter does not matter) Quote Link to comment Share on other sites More sharing options...
werner Posted September 5, 2009 Report Share Posted September 5, 2009 Yeah, the pH difference is probably related to CO2 in the tap water. The other results sound a bit odd. I'd expect them to differ somewhat between the tap water and 2 different tanks. The water softener should make the GH test read 0 (or very low) since it removes the Ca and Mg ions and replaces them with sodium. The KH would not be lowered by the water softener. Another thread about water softeners: here. Quote Link to comment Share on other sites More sharing options...
timbruun Posted September 5, 2009 Author Report Share Posted September 5, 2009 that's what i figured about the gh. so a slight green color change is still a change. so i have very low gh. but my kh is off the chart that comes with the api kit. and is that a problem? Quote Link to comment Share on other sites More sharing options...
randy Posted September 6, 2009 Report Share Posted September 6, 2009 Does you tap water read the same as the tank water. Quote Link to comment Share on other sites More sharing options...
timbruun Posted September 6, 2009 Author Report Share Posted September 6, 2009 for the most part tap and tank are similar except for the obivous of nitrate and like i said ph over time. Quote Link to comment Share on other sites More sharing options...
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