Momentum 29G Grey Tanks

[Lucky One]

My owners manual says to empty one Grey tank at a time and the control panel has a button for each grey tank, but there is only one grey lever under the RV. I'm confused!!

[Subvet0615]

My owners manual says to empty one Grey tank at a time and the control panel has a button for each grey tank, but there is only one grey lever under the RV. I'm confused!!

pds06,

Most of the owners manuals are generic and general and not specific to one unit only. Out of curiosity I looked up the floor plan and specs for your 29G. Floor plan shows you have front bath and rear half bath. Without looking at the specs I would have guessed that your 29G would have one grey tank and one black tank forward and one black tank in the rear, but the specs list 57 gal GW and 57 gal BW. My 21G has 74 gal GW and 39 gal BW, about same total volume but has two GW Tanks, one front and one rear. My rear grey tank lever is located just behind the stinky slinky storage tube. Not sure I was any help. Your 29G is a monster along side my 21G.

[Lucky One]

Thank you for your response, I have looked under the RV and all I see is the one grey handle and two black handles. I'll take another look, Thanks again!

[Subvet0615]

Thank you for your response, I have looked under the RV and all I see is the one grey handle and two black handles. I'll take another look, Thanks again!

I'm only guessing, but I bet you have forward grey and black tanks and only a rear black tank that the half bath toilet, sink and kitchen sink drains into but you said your control panel has indicators for two separate grey tanks. Is your second black tank dump valve located in the rear?

[Lucky One]

Yes, the rear black handle is just in front of the axles.

[Subvet0615]

Does the control panel have indicators for two BW and two GW tanks?

[Lucky One]

One for BW and two for GW, one GW handle and two BW handles. This is why I'm confused and the fact that this is my first RV!!

[Subvet0615]

One for BW and two for GW, one GW handle and two BW handles. This is why I'm confused and the fact that this is my first RV!!

Maybe the control panel indicators are mislabeled and should be labeled Waste Water 1 and Waste Water 2. Sure sounds like you only have one GW tank and two BW tanks. I would add water through the rear toilet and see which indicator shows an increased level. The black tanks are almost always located directly under the toilet so you should have a separate indicator for each BW tank.

[Lucky One]

Thanks, I'll try that and see what the outcome will be!

[Lucky One]

I drained the GW and the #2 GW indicator showed 1/3. I'm thinking this indicator is really a BW. I'm at home so I can't drain the BW Tanks, even though I haven't used the toilets you never know !