This conversion takes 5-days. The Natural Hot Tub Company® Penetrating Cleanser works well in removing past chemical build-up in hot tubs & spas equipment and lines. This water will have a higher concentration of chemicals used in the past and hot tubs & spas should not be used during this time. Please read instructions completely before starting.

*One part household bleach to 10 parts water can be used to clean cover and headrest. Baking soda or vinegar diluted with water is suitable for cleaning the interior of your spa. Never use anything with soap or anything which will leave a soap residue. Remember, unless you blow out your lines with an air compressor you will always leave 3 to 5 quarts of water inside your pipes and lines.