Just bought the a Rola-Chem pump for acid and the manual says the unit should be protected from rain, sun, etc. How important is this? I want to put it outside against the wall where all my other pool equipment is. It will be shaded most of the day, but it would see rain from time to time. If it has to be protected does anyone have any ideas on what to use as a cover/housing. I am having a hard time finding a NEMA 3R housing that is that deep. How about a cover of some sort instead of a housing? Any ideas would be appreciated.