There are a number of things you must do to ensure your black water holding tank functions as it should. One of the biggest mistakes that is made is leaving the black water tank gate valve open when set up in a park with full service. This is OK for the grey water tank as it will flow, because its sink and shower water. If the black water tank valve is left open the fluids will run and the solids will stay causing a mountain of you know what in the tank. This will eventually lead to a clog in the black water holding tank and it is challenging to find someone to fix this. The proper method of using the black water tank is to keep the valve closed while in use. Use RV toilet waste digester to break down the solids and control any odors. Drain the black water tank when it is at least half full or more. It is a good idea to close the black water tank valve after draining and flush with clean water and drain again. Once the tank is drained and flushed, we put about a gallon of water and 2 ounces of waste digester down the the toilet. You are now ready for your next trip. There are many waste digesting products available. Some are liquid, some are powder and some are tablets. Most are very effective if used as directed.
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| 3'' Black Water Tank Gate Valve |
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| Liquid Waste Digester |
