how mutch is a TDS meter? is there some ware i could bring a water sample to and have it tested? iam on a well in agassiz(near harison hot springs)and iam realy whanting to know sence iam planning on useing tap water for my FOWLR tank soon, dos it realy matter sence it would FOWLR? RO/DI just seems so expensive and confusing.
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