I have a detached garage that serves as my woodworking shop. My latest project involves installing thermal solar collectors on the shop roof and piping the hot water back to the house provide heat for the domestic water heater.
Part of this project will involve a 40' trench from the shop to the house for the solar heating pipes - hot supply and cold return. Currently the shop does not have any plumbing. I was thinking that while I've got the trench open I could run a water line from the house to the shop and and a sewer line for a utility sink.
Altogether the trench would have:
2 insulated pipes for the solar heating system 1 cold water line to the shop from the house 1 sewer line from the shop to the houseI should add that the floor of the shop is slightly above grade and the pipes will be run to the house basement, the floor of which is about 5 or 6 feet below grade. I only want to install one utility sink in the shop; no toilet.
My questions:
1) Is this shared trench a massive code violation in the US? (located in VA) 2) What is the smallest sewer/drain line that can be installed in such a scenario? I have an ideal location to tie into the house's sewer via a 3" tee 3) IIRC the drop for a sewer line should be 1/4" per foot - is this about right?Thanks for any help you can provide!
Eric