Underground Plumbing
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Fleet Owner
Joined: Mar 2003
Posts: 24,724
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From: Blue Hill Township
Underground Plumbing
I am moving into the new house pretty soon and will have a nice sized 2 stall garage that is going to be my shop. There is currently 110 out there but I plan on sinking some conduit and pulling 110, TV, ethernet, data-bus for the alarm, etc. I also will be putting in some pipe for hot/cold water, air and gas as long as I have the trench dug. It won't be hooked up yet but I need to figure out how to put it in. The electrical part is taken care of, but I am no plumber. Can I run a 6" PVC pipe and run the others through that? Help me out here. Thanks.
Elder User
Joined: Mar 2007
Posts: 693
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From: SouthWest Ga.
It never hurts to go beyond the inspectors specs. I've spent my time in your part if the world. For the plumbing I would bury deep, use sch80 PVC pipe insullate extremlly well and wrap with a heat tape. I the building code is any stricter than than go with it. It does get cold up there. Don't beleive you can put the Elec. and the Plumbing in the same ditch. Be sure and ask that of the inspectors.
Fleet Mechanic
Joined: Jul 2004
Posts: 1,988
Likes: 14
From: Travelers Rest SC
AFAIK, you can't put plumbing and electric in the same ditch. In your neck of the woods, you'd have to bury the pipe very deep, or shut it off when winter blows in. Your gonna need some place to drain that water to, also.
I'll have the Roast Duck
Joined: Jul 2002
Posts: 9,622
Likes: 110
From: Northshore, MN
below the frost line approx. 4 to 5 feet for the water line. they make a heat tape now that you can insert inside the water line too, with a plug on the inside end for 110 v. It cost about $6 a foot. Mine comes up right at the well tank where it Tees to the outlet, and the pipe continues to the pressure switch. Talk to your city/county office for codes, as that would be the best bet.
Postmaster
Joined: Aug 2004
Posts: 4,004
Likes: 1
From: North of Boston MA
A couple quick thoughts that I had regarding what you are planning. As was already mentioned, you should talk to the building inspector for what you HAVE to do versus what you WANT to do.
First of all, will the shop be heated and insulated? If it is, you wouldn't need to heat tape the water line as long as it is installed below the frost line. The local building code should be able to tell you what the minimum depth needs to be.
Also, since you want hot water out there, look into the cost effectiveness of putting a second, small water heater out there rather than running hot water from the house. Might be cheaper and would save a lot of water and energy depending on how far the run is from house to shop.
Finally, since you are going through all the effort of running conduit anyway, why not plan on putting 220 to your shop and installing a subpanel. 110 can be quite limiting.
Hope this helps.
First of all, will the shop be heated and insulated? If it is, you wouldn't need to heat tape the water line as long as it is installed below the frost line. The local building code should be able to tell you what the minimum depth needs to be.
Also, since you want hot water out there, look into the cost effectiveness of putting a second, small water heater out there rather than running hot water from the house. Might be cheaper and would save a lot of water and energy depending on how far the run is from house to shop.
Finally, since you are going through all the effort of running conduit anyway, why not plan on putting 220 to your shop and installing a subpanel. 110 can be quite limiting.
Hope this helps.
Elder User
Joined: Dec 2001
Posts: 800
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From: Ontario, canada
I ran a piece of 1" poly waterpipe buried 6' deep when I built last year. It was pretty cheap, about 30¢ a foot.
It's under the driveway and I never had any frost problems last winter. I'm in northern Ontario, Canada, and we get real winters here.
I dont think running hot water underground would be very practical. I'm considering a small hot water heater of some variety in the future.
It's under the driveway and I never had any frost problems last winter. I'm in northern Ontario, Canada, and we get real winters here.
I dont think running hot water underground would be very practical. I'm considering a small hot water heater of some variety in the future.
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Junior User
Joined: Mar 2006
Posts: 62
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That is a good idea to run the suppliy lines thru the 6" pipe. I am not sure how you are planning on getting the hot water to the garage though. I would install a small 10 gallon or some sort of insta heat in the garge rather than run a line for hot water from the house, seems to me running a hot water line from the house would be very inefficient.
Here in MD, you could use black well pipe, CPVC Plastic pipr or PVC plastic pipe for the supply. However you must use CPVC for the hot side.
Good luck & congrats
Here in MD, you could use black well pipe, CPVC Plastic pipr or PVC plastic pipe for the supply. However you must use CPVC for the hot side.
Good luck & congrats
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Senior User
Joined: Jan 2005
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if you are gonna run power out there as well as tv phone cat 5 ect you need a 1 foot seperation between the power and other lines I would put in two 2" conduits one for power one for eveything else you can put a lot of wires in a 2" pipe as long as you use long sweeps on the ends
Postmaster
Joined: Apr 2004
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From: Bossier City, LA
Originally Posted by gbrett
if you are gonna run power out there as well as tv phone cat 5 ect you need a 1 foot seperation between the power and other lines I would put in two 2" conduits one for power one for eveything else you can put a lot of wires in a 2" pipe as long as you use long sweeps on the ends
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Fleet Owner
Joined: Mar 2003
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From: Blue Hill Township
Change of plans here. Water/gas/air isn't gonna happen.
I will be digging the trench for the pipe for power and low-voltage in the spring.
Other projects came up first. Oh well.
I will be digging the trench for the pipe for power and low-voltage in the spring.
Other projects came up first. Oh well.
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