Help with cleaning multiple black tanks on Momentum 351m

[jayconklinsr]

My wife and I have a new Momentum 351m toy hauler. We are getting ready to take it camping on its' maiden voyage. It has a black tank for the front bathroom and a separate black tank for the half bath in the garage area. I have read and re-read the manual. With the primary black tank, when cleaning, you empty the tank, leave it open and then connect a hose from a spigot to the BLACK RINSE opening on the Nautilus system. You run it until the water coming from the black tank looks relatively clear. I am GOOD with those instructions but what do you do with the REAR black tank? How do you rinse that tank out? Am I missing something? Thank you in advance.

[ncitro]

My wife and I have a new Momentum 351m toy hauler. We are getting ready to take it camping on its' maiden voyage. It has a black tank for the front bathroom and a separate black tank for the half bath in the garage area. I have read and re-read the manual. With the primary black tank, when cleaning, you empty the tank, leave it open and then connect a hose from a spigot to the BLACK RINSE opening on the Nautilus system. You run it until the water coming from the black tank looks relatively clear. I am GOOD with those instructions but what do you do with the REAR black tank? How do you rinse that tank out? Am I missing something? Thank you in advance.

If there is no flush on the rear, you'd either get a wand that goes on the end of the hose that you stick in the toilet, or there are aftermarket flush kits you can install on the tank. There's also a product that goes on the discharge pipe that you hook a hose to that will backfill the tank with water.

Valterra Flush King™ 45 Degree Reverse Flush Valve Attachment for RV, Camper, Trailer https://www.amazon.com/dp/B008O9DV78...PZEN0JVQDRZVY1

[Cate&Rob]

The Momentum 351 drawings show that there is a flush system for the rear black tank. They do not show where this flush attachment is located. Perhaps another Momentum 351 owner will chime in here with more information. If you can find the vacuum break in this usually black braided hose (perhaps under a sink or in a closet near the rear bath?) you might be able to trace that hose to the flush attachment point.

Rob

[Country Campers]

OffToHavasu

Curtis is there a black tank flush on the rear half bath? If so where is it.

Thanks

Brian

[ThePowells]

jayconklinsr Welcome to the family and the forum!

[OffToHavasu]

The flush for the rear black (and gray) tank is on the driver's side just forward of the rear bathroom window. You can see it just above the wheels in this photo.

[jayconklinsr]

Thank you everyone for your assistance. The flush valve was right there on the side towards the back. We've been a little overwhelmed with all the new features with this camper and that just slipped through my looking for it. We head out today for Misty Mountain Campground in VA for our first trip and are very excited. Thanks again!

[Sea2er]

My Name is Ron. Just bought a 351ms. Can't figure out how to empty the rear black and grey water. Please help?

[OffToHavasu]

There's only one tank for black and grey for the rear bathroom. There should be a handle just about right under the bathroom window below the skirting.

[Sea2er]

Thnkas Guys, but in my old age and eyes I'm just not seeing it. I have a handle just forward of the wheels that when pulled I believe dumps fresh water. But can't figure out the waste water.

[Sea2er]

Just kidding about the old age thing. Only a youthful 66 hear. Does anybody have a pic of the dump handle so I have a point of reference?

[Jlawles2]

https://www.youtube.com/watch?v=p9cyrZTXzFA 11:15 mark it appears there should be a white handle to the left and a black handle to the right of the rear jack. These would be the dumps. One possibly for fresh water, the other for the rear holding tank.



Looks like a shadow but I think it might be the handle in the closed position. Capture is from the 11:17 mark.