Garage Washer/Dryer Hookup Drain (Momentum 399TH)

**LivingLawlessAdventures** · 03-05-2024, 08:18 AM

I've been seeing a lot of different answers as to where the washer/dryer drains depending on the model of the RV.
Was curious if anyone had a definitive answer as to where the washer/dryer hookup in the garage of a 399TH drains to?
There are two gray tanks on the RV (one for primary bath and one for sink), and a secondary black tank for the garage bathroom.

**Second Chance** · 03-05-2024, 09:12 AM

I'm not certain on this, but I believe that the W/D hookups in the garage drain into the garage combo tank. @huntr70 can probably say for sure.

Rob

PS: Some full-timers in the toy hauler across from us in this military campground forgot to leave that rear tank drain open on laundry day... you guessed it - the water backed up into the W/D drains and rear sink and flooded the garage floor. They were not happy campers.

**xrated** · 03-05-2024, 10:33 AM

Originally Posted by LivingLawlessAdventures

I've been seeing a lot of different answers as to where the washer/dryer drains depending on the model of the RV.
Was curious if anyone had a definitive answer as to where the washer/dryer hookup in the garage of a 399TH drains to?
There are two gray tanks on the RV (one for primary bath and one for sink), and a secondary black tank for the garage bathroom.

The large Momentum Toy Haulers, like yours and like mine will drain the washer into the combo tank that is on the rear of the trailer. Technically, it is a combo tank if you also have the 1/2 bath in the garage area, but if you don't, then I guess you could call it a black or a grey tank....but that is where the washer drain goes to.