We have been using ours for 2 years now to empty our tanks at home as well.
Ours is a 30' run and about a 3' uphill grade.
Other than it getting pretty warm we haven't had any issues. We have a dedicated black hose for it. We have two drains on our RV so we ran connections at both dump valves. We did you 10 garage wire as it is just about a 40' run from battery down to last dump valve.
Thought never hit us to try a 1" hose but we just bought a new house and are planning on putting in a pvc line just for the RV to make it easier.