Burried pipes for water, gas and power


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Old 07-03-18, 08:45 AM
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Burried pipes for water, gas and power

I am trying to setup an area in my backyard to house my water cistern with water pump, power generator and gas tank. It is about 100 feet away. I'll be digging a trench to bury the pipes for water (send and return), electrical for power generator, and a gas line.

Water:
I plan on laying 2 3/4 inch PVC Schedule 40 pipes.

Electrical:
Thinking of using 2 inch gray Schedule 80 PVC pipe.

Gas Line:
Still not sure if I should go with copper or stick a flexible tube within a 1 inch PVC pipe. Might be overkill, don't know.


I would like to know the depths that each pipe should go in the trench and any other recommendations. Looking for any more economical options.
 
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Old 07-03-18, 09:23 AM
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You did not say where you are located so we can not comment on what codes may apply to you. Call the relevant agencies in your area and ask. In addition to burial depth find out how closely those services can be next to each other. All in one trench is easier for the initial digging but will mean hand digging in the future if you need to work on it. Burying the lines 3-4 feet apart will allow room for a machine to do the digging if needed.
 
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Old 07-03-18, 10:55 AM
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See above. Only thing I would add is that if code allows it, you should definitely use flexible in-ground line for the gas, rated for burial, no matter what your soil type or where you live. Typical installation for in-ground propane tanks. Take no risks when working with gas lines.
 
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Old 07-05-18, 03:35 AM
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Is there a general guideline at least on pipe depths. I live in Puerto Rico, but building codes are basically a joke. Nobody really inspects anything. That being said, I believe we copy from the International Building Codes.
The latest PR Building Code code I could find is this one from 2016.
 
 

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