The reagent is brown and stains the test water brown but the targets are shades of pink /purple. I thought, OK, I'm high on iron, so I diluted the test water 10:1 but still got the same result, and then again in tap water.
I don't think I should suspect my tap water. It is very soft and I'm thinking if it's been in my tank for a while it could well have been different but it wasn't.
Should I suspect the test kit?
I don't think I should suspect my tap water. It is very soft and I'm thinking if it's been in my tank for a while it could well have been different but it wasn't.
Should I suspect the test kit?