water softener for toilet/black tank

[bgb]

Hi all. Has any one heard of adding water softener to their Airstream toilet to prevent waste building up there? My brother told me he has to do this in his RV. We're newbies and haven't even picked up our Airstream yet but trying to get things figured out. Thanks for your help!

[TG Twinkie]

Never heard of such a thing. What kind of waste is building up?

[LBOskiBear]

I think it's part of the "GEO Method" of cleaning the black tanks. It includes using water softener as well as laundry detergent. If you google "GEO Method," you should find quite a bit on the subject.