Replace valves, or use twist on?
Recently picked up a used 2010 Dutchmen Kodiak. Been reading a lot, learning a lot, and buying a lot! The trailer was winterized at the dealership, but during the PDI - I had them show me everythi...
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There should always be some water in the black tank unless you know for sure that there is nothing in it. Solids can and will get hard and overtime cause problems. I have just added a twist on valve to my setup to prevent the type of situation you described, but I would verify that the two existing valves are working properly.
