In order to prolong the beautiful finish on your fountain, we highly recommend you purchase KR Protector. It prevents stains, build-up of organic contaminants and sludge. It is non-toxic and has bacteria free enzymes.
You may scroll down to "Related Products" to view this item. Please note that the use of other harsh chemicals such as bleach can harm the finish and fountain pump. The use of these chemicals will void the manufacturer's warranty on this fountain.