Those look like hot & cold water lines, I'd tighten them. Mine has a hot & cold and had 2 white braided hoses with the vent/vacuum breaker at the ends which is removed and ran the input directly to the black tank and eliminated 10' of hose and the leaking vent/vacuum breaker. Looks like yours is different.
The baking soda/vinegar mixture fixed most of the problem. It still doesn't drain as quick as it should but another dose of the mixture should fix it. I cant figure out for the life of me how to get the top off over the drain. I don't see a screw and when I turn it it doesn't come off.
I have seen some at Ace Hardware but the cost .more
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
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