Citric Acid 220.71

[moondoggy4]

I bought this to clean my power heads, how much do you use in a 1 gallon container? Thanks in advance

[rvitko]

I use a tablespoon per pint of water, it goes further if you use RO or distilled since it won't lose its effect to the high ph and minerals already in the tap water. I usually just fill the impeller well and soak the impeller rather that the whole pump. It does seem to work faster than vinegar but vinegar works well and is also safe for the plastic.