Water containment (setup) good idea for mobile as well

[215Detailing]

https://www.youtube.com/watch?v=pPdLBQ95vjg
I never thought to get a basin larger enough to fit in storm drain or use a sump pump in drain to barrel to collect waste water

 

[215Detailing]

RUN OFF FROM DETAILING which is worst run off from washing vehicles or salt toxins from road ice and snow treatment? E.P.A
https://www.youtube.com/watch?v=4KBtZS8pyl0