Car wash

[SteveD]

What happens to the water used by commercial car washes.  Is it filtered and recycled?

[woofgang]

yes. it runs off through the drainage and back into the machine. Quit a lot of it gets lost though, especially if you don't have a dry cycle

[ianess]

Any water that actually gets caught goes through a filter and re-used. There is a fair amount of lost water though,  plus there's always the problem that if the filters aren't cleaned regularly you could end up being "washed" with dirty water.

[Gef]

It all goes down the drains where it joins all of our other waste water.