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grey water tank
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  1. Promaster Builds and Conversions
    I'd like to maximize the space under my van. I'm debating between replacing my wheel or putting it under van
  2. Promaster Builds and Conversions
    I was just wondering what kind of water tanks I would use if I was to mount them under the Promaster 159 2500. I would be using these tanks for fresh and greywater, no blackwater.
  3. Promaster General Discussion Forum
    Maybe I'm overthinking this. Occasionally we all need to drain our freshwater tanks, for winterizing, for cleaning or service, or to avoid driving with extra weight, and I thought why not open a valve below the van that drains it into the greywater tank. Then the greywater tank would have a...
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