im going to be breaking into the mains for the kennels drainage but am i right in thinking that water from the gutters goes into a different drain than say your kitchen waste pipe if this is the case im guessing i cant use this drain(rain water only) can anyone put me right,idealy the gutter drain would be an easy job for me the main sink drain bit more work or does it have to go into the main sewer pipe if thats whats needed then so be it,just want know where i stand with it,hope this makes sense cheers