use what they use in thetheaters...floor sockets....they are flush to the floor....but i would make sure ti was gfi
no sense frying everyone in event of a leak...
if u have a basement under where this tank will be i would run an pole up thru wehre the stuff is going to be and put in an outdoor gfi receptacle...4 soded with plastic shield so that way in event of leaks u are well protected.

if u have a basement under where this tank will be i would run an pole up thru wehre the stuff is going to be and put in an outdoor gfi receptacle...4 soded with plastic shield so that way in event of leaks u are well protected.