Hockey Rink - has anyone ever cleaned inside of.......?

[RENOVO Power Wash]

A local hockey rink has called our office to clean the flooring, the boards, etc. They have also requested total water recovery which is something we try to stay away from at this point in our business as we do primarily residential exteriors. However, this is an interesting project so I am looking into it.

Has any ever serviced a hockey rink? What was the experience like?

Thanks for any feedback.