Good Sam Club Open Roads Forum: 2 dump valves for one tank
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 > 2 dump valves for one tank

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rlw999

Washington State

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Posted: 08/23/20 10:52pm Link  |  Quote  |  Print  |  Notify Moderator

My RV (2016 Coachmen Leprechaun) has 2 dump valves for the single blackwater tank.

The blackwater tank is on the passenger side of the rig under the toilet and it has a dump valve just outside that tank, then there's a long pipe that leads to the normal driver side dump outlet where there's another blackwater dump valve (there's the normal graywater valve there too, the graywater tank is near the dump outlet so it just has the single valve).

What's the best way to dump with that 2nd valve? Here's what I'm doing:

1. Hook up sewer slinky and put it in the sewer drain. Both valves are closed.

2. Walk around to the passenger side of the coach and open the valve at the tank. I can hear wastewater filling the pipe to the other side.

3. Walk back to the waste outlet on the driver side and pull that valve, then watch the show in the clear elbow as the waste goes down the drain. I do it in this order so the water doesn't get an 8 foot head start and build up enough speed/pressure to knock my slinky out of the sewer drain.

4. After the tank is empty, I walk back to the passenger side, close that valve, put some water in the tank as a rinse (no blackwater rinse system in this RV), then I pull the valve again and let the rinse water out (I kept the valve at the waste outlet open)

5. Finally, when I'm done, I close the passenger side valve nearest the tank, go back to the driver side dump outlet, make sure the water stopped dripping out of that cross-pipe and then close the valve at the dump outlet, then I'm done with the blackwater. Then I do the graywater.

Am I missing anything? The owners manual doesn't say anything about how to use that second valve so I'm just guessing.

path1

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Posted: 08/24/20 01:44am Link  |  Quote  |  Print  |  Notify Moderator

What ever works for you.
Fyi...I installed a second valve for mine because sometimes depending on where you dump there might not be water to clean out. My pipe has a bit of a belly in it. So when the next time I have to remove termination cap...I have stuff in pipe that doesnt look to pretty. After installing second valve by termination cap solved that messy problem.

path1

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Posted: 08/24/20 01:47am Link  |  Quote  |  Print  |  Notify Moderator

What ever works for you.
Fyi...I installed a second valve for mine because sometimes depending on where you dump there might not be water to clean out. My pipe has a bit of a belly in it. So when the next time I have to remove termination cap...I have stuff in pipe that doesnt look to pretty. After installing second valve by termination cap solved that messy problem.

pushtoy 2

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Posted: 08/24/20 05:02am Link  |  Quote  |  Print  |  Notify Moderator

if I were you I would put a wrince setup on the black tank.. I have put it on all my coaches chat didn't have one..ez to install you won't regret it


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cavie

Port Charlotte Fl/ Hindsdale MA

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Posted: 08/24/20 07:10am Link  |  Quote  |  Print  |  Notify Moderator

You are doing it correctly except.....Let the water flow as fast as it want's too. good for flushing. Keep the passenger side closed at all times except when dumping. It is needed in case you hit something on the road while travling an break open the pipe crossing the rig.


2011 Keystone Sprinter 323BHS. Retired Master Electrician. Retired Building Inspector.

All Motor Homes are RV's. All RV's are not Motor Homes.

routeforty

ohio

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Posted: 08/24/20 10:52am Link  |  Quote  |  Print  |  Notify Moderator

I have a leprechaun also. I dump mine just as you do with the exception that I have a black tank rinse. Where you add water to your tank to rinse I close the passenger valve and rinse. So basically I do it exactly as you do.


2018 coachmen leprechaun class c

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