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Api water test kit

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Is there any other way to lower the gh and kh other than using ro water since I am renting a house right now they won't allow us to use it and I can't keep buying distill water since it so expensive plus i don't have a driver license yet

What color are you looking for to change to for kh and gh

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So I call my landlord today again and ask him about the ro water system so he finally said yes to it but it has to be nimbus water maker mini

But still looking for the answer to to what color is to look for when testing gh and kh

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The API GH and KH tests are done by titration. If you read the instructions, they will explain that you need to count the number of drops it takes for the test solution to change color. It will always change to the same color no matter what your water values are.

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