Selfservice hand washing, able to use your buckets

[billias]

Hi All,

After moving from our private land (Netherlands) to apartment. I miss a place to wash the car myself.

I used to have a 3 bucket (2+extra) system for myself. and all my pistols, foams etc.

Is there a place where I can go and do the washing! myself? With my buckets (i am ok doing that) and pay for the use of the place/water?
I want to avoid at all costs the brushes, and the handwashing is a bit Too expensive.

Berlin area.