Stainless w/Brass - Dissimilar Metals?

[Red Baron]

The brass hose barbs on my presoak system last about 1-1/2 years and they always seem to wear out at the worst time. I'm thinking of swapping to stainless hose barbs - does that mean I need to go with stainless Ts and couplings too?

 

[I.B. Washincars]

I don't think that keeping the brass tees and couplers is a big deal. They will last many times longer than the barbs. When I am working on the PS or tire cleaner I use SS if I have them, but most of the plumbing (excluding the barbs) is still brass.

 

[MEP001]

Brass and stainless won't interact with each other.

Windtrax has stainless fittings at very good prices.

 

[soapy]

Galvanized and cooper will not work together. Every other kinds of metal I have tried seem to work OK in the carwash environment. For presoak I like to use stainless or plastic hose barbs. Plastic tends to leak after a while around the threads if you use hot water through them.