Forum Title: I'm trenching in a water line and have I some questions.
We recently put a mobile home on our property and in order to save some money I'm going to do the plumbing work myself. I have some diy plumbing experience and some general knowledge about plumbing, but I'd like to do this job right to avoid any problems in the future. There is already a home on the property and I'll be tying into the existing 3/4" water line. 1. How much gravel do I need to have at the bottom of the trench? I'll be using pex pipe. 2. What's a good way to prevent frozen pipes where the water line comes up from the ground to the house. I'd really like to avoid electric heat tape if possible. I'd really appreciate some advice here. I'd be happy to answer any questions If I haven't provided enough information. Also, feel free to give me any tips/pointers.
Category: Plumber Post By: JULIAN CROSS (Tacoma, WA), 08/01/2017

We install water with sand if needed or native backfill. Sewer mains are laid in gravel and backfilled to above the pipe then native.

- EMMA SALAZAR (Quincy, MA), 09/05/2017

I really appreciate your quick and detailed response. I'll follow your advice. I also plan to tie our toilet into the existing septic tank while running grey water off (legal here). Is it okay to tie just the toilet in? Or should I also tie in the shower (or something) to help flush waste from the pipe to the septic?

- BEVERLY DIAZ (Alameda, CA), 10/03/2017

NO GRAVEL I REPEAT STEP AWAY FROM THE GRAVEL !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! you want soft dirt around your water line, water lines will contract and expand putting a rock next to it is asking the rock to rub a hole in it over time my advice, do not use pex for your water service, use 3/4'' pvc instead or better yet. 1'' i like a large volume of water at my hose bibs. insulate the pipe, and use CHILDERS CP-11 VI-CRYL MASTIC COATING to paint the insulation to water proof it, available at a plumbing supply house use rubatex insulation with contact cement to stick it tigether

- ANDREA REYES (Belleville, IL), 10/09/2017

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