Black tank clean out
Can someone point me in the right direction to find the plumbing layout fir the black tank washout lines in a 2007 Coachmen Cross Country 389DS ? I’ve been googling it and can’t find anything for my s...
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Look for a vacuum breaker under your sink which connects to the black tank flush system. Here's a link to a kit which has a brass vacuum break.
Black Tank Flush Kit with Vacuum Breaker
The brass unit is the vacuum break. This is similar to the one in our rig, but ours is under the kitchen sink. The disk part of the breaker should point upward with the two pipes coming up from the floor.
It is only connected to the black tank flush plumbing, so if you're not flushing your tank, it won't show evidence of a leak.
The vacuum break line has to be higher than the rest of the plumbing for the flush system to help prevent siphoning, along with the vacuum breaker, which is why they're mounted inside and usually under a sink cabinet.
Hope this helps.
~Rick
Black Tank Flush Kit with Vacuum Breaker
The brass unit is the vacuum break. This is similar to the one in our rig, but ours is under the kitchen sink. The disk part of the breaker should point upward with the two pipes coming up from the floor.
It is only connected to the black tank flush plumbing, so if you're not flushing your tank, it won't show evidence of a leak.
The vacuum break line has to be higher than the rest of the plumbing for the flush system to help prevent siphoning, along with the vacuum breaker, which is why they're mounted inside and usually under a sink cabinet.
Hope this helps.
~Rick
