Update - So I decided to connect the two lines together and then add an external check valve. I connected the hose to the tank flush in the convenience center. I knew water was coming in as the hose filled. I looked under the sink where I joined the 2 lines. I knew water was getting to the point of the connection because I had a very slow drip at one of the connections.
However, water is still not entering the black tank. I'm not sure what to do at this point. What can I be doing wrong? Anything I may not have thought of? Thanks.
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Cal & Kim
2013 3582RL
2012 Ram 3500 Laramie
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