We have to "retrofit" a fresh-water tank and electrical pump in our 36' park model trailer as the park we are in has lousy water pressure. Pump is 115V and would normally be "wired" in to trailers electrical system.However, I am loathe to break any cover seals protecting us from mice and other rodents, by drilling holes etc.in the underbody. I think I should be able to wire the pump with a "plug" and connect it to a normal electrical outlet. Any ideas on the grade of wire and electrical plug I should use. Please note I am in Ontario Canada and must follow safety codes for this province. Thanks.