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  1. M

    Black Water won't drain, all tanks gasp for air.

    Folks, thank you all for your help. I got it working. The one piece of advice that really works is having a clear piece on the drain tank so you can watch to see when your all clear. Thanks again!
  2. M

    Black Water won't drain, all tanks gasp for air.

    Thanks. (I think). Words an RV owner never want to hear. Have already screened the fridge so thats dealt with but I will check the roof vents this weekend. Yes I have clear fitting and external valve. Bought them yesterday. Also I'll drop the corplast and look at cable. Someone suggested they...
  3. M

    Black Water won't drain, all tanks gasp for air.

    Thanks for the reply. Yes same spot. Its parked at an RV Resort. The system is actually a huge holding tank which gets emptied every Monday. We are too close to a river for a septic field. I seem to be the only one having this symptom but not to say there isn't an issue the draining system. Two...
  4. M

    Black Water won't drain, all tanks gasp for air.

    Thank you sir. I was pretty sure that would be the outcome. Just too old to get up there so I'll get neighbour to help. Do the rain caps just twist off?
  5. M

    Black Water won't drain, all tanks gasp for air.

    Folks, I have an issue with my Black tank draining (might be valve) but lately I noticed when draining all tanks, the water runs for a bit then it seems to stop for a second or two and I can hearing a sucking sound in the hose. Seems to be gasping for air from the dump station. Should there not...
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