Black tank

[Wood Family]

We have a 2022 Raptor 352. We know how to flush the main black tank but how do you flush the black tank for the 1/2 bath in the garage?

[travelin texans]

Originally Posted by Wood Family

We have a 2022 Raptor 352. We know how to flush the main black tank but how do you flush the black tank for the 1/2 bath in the garage?

If there's not a port near the outside of that bath somewhere then one of the wands designed for that or an old piece hose down through the toilet is the only way. Or dump a couple buckets of hot water down the toilet.
Most likely that 1/2 bath has the sink draining into the black tank as well so it gets more water which helps.

[Jake's Keystone]

This is what I use to flush all my tanks, even the black tank that has the flush connection. I also sometimes add a bit of Calgon and let it soak over night.
https://www.amazon.com/Valterra-Degr...s%2C182&sr=8-4

[Raptor 429]

Originally Posted by Wood Family

We have a 2022 Raptor 352. We know how to flush the main black tank but how do you flush the black tank for the 1/2 bath in the garage?

Here Ace hardware sells powder borax. Once you dump or when not in use add a half box of borax and a half bottle of dawn liquid dish soap, to about 3gallons of water. That will slosh around cleaning until you use it and then need to dump.