105 votes

Can I pour concrete over a PVC sewer pipe without damaging it?

Move the hole. You know its in a bad place. If you break the pipe with your flag pole you will curse your own stupidity and hate the flag pole and that is how bad things start. If you do get away ...
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  • 5,998
31 votes

Can I pour concrete over a PVC sewer pipe without damaging it?

Never, ever, mess with any pipe underground. No matter if it is any kind of plastic, steel, brass, copper, ceramic, concrete, whatever. No matter if it is used for sewer, water, gas, electricity, ...
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  • 2,292
22 votes

How to bury electrical wiring

You can't actually use indoor wire underground. The wire or cable will get wet, will degrade, leak, and do really strange things like electrify the ground. There is nothing you can do to keep ...
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22 votes

Can I have utility location done well in advance of a fence project?

Utilities, as a rule, are delighted to come out any time and mark locations. They would much rather avoid a problem instead of having to deal with an outage. If they need to come out again, e.g. ...
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  • 547
19 votes

What metal is most suitable for a ladder submerged in an underground water tank?

Stainless steel is the obvious choice. Which exact grade is probably more dependent on what you can easily find than what the "most perfect for the job" grade might be, but 316 or 316L would be high ...
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  • 139k
16 votes

Can I have utility location done well in advance of a fence project?

This is a normal thing to do. In my state, for example, the utilities must have been located within a certain number of days of digging. They are also happy to mark utilities for just project planning,...
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  • 4,847
11 votes

Can I pour concrete over a PVC sewer pipe without damaging it?

TL;DR You shouldn't do that. If for no other reason then consider this simple fact. If that pole gets knocked over via wind or a rogue vehicle then the concrete will tilt and puncture a hole in the ...
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  • 11.7k
10 votes

Can I build an electrical pole structure to hold a power wire into my property?

Check with your utility to see if they have a program to bury your service line. My company (FPL) has a program where they will give you the conduit to bury along with instructions. Once everything ...
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  • 4,394
10 votes
Accepted

Buying a House On Underground Spring. What to do?

You didn't indicate your location or site characteristics (slope, hillside, etc), but the location of the country, even generally could be helpful, but not required. You indicated the water bill ...
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  • 1,123
10 votes

What is this cable popping out of my lawn?

It appears to be COAX cable and it's almost certainly your (or your neighbors) CATV (i.e. Cable TV) line. These are often placed near trees and they get pushed up as the tree grows. That one is very ...
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  • 20.6k
9 votes

Can I have utility location done well in advance of a fence project?

Once you know where the utilities are located then you know where the utilities are located. After they mark the ground with paint you can put a stake or a flag there so that if the marking paint ...
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  • 13.3k
8 votes

What's the easiest way to cut a chunk out of a buried railroad tie?

I've used a sawzall type reciprocating saw with the 14" long demolition style blades for similar type wood removal in the ground. Be prepared to replace the blade a few times as cutting into dirt ...
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  • 61.9k
8 votes

What material pipe to carry water to a detached garage

I don't know California specifics, but "Polyethylene well water pipe" is a common material for direct burial installation - get the 200 PSI version for the thickest walls / most durability. ...
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  • 139k
7 votes

Can I have utility location done well in advance of a fence project?

It would be quite unusual that utility location would entirely prevent you placing the fence where you want it. More likely is that proximity of utilities could require several fence holes to be dug ...
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  • 20.5k
6 votes

PEX vs PE coiled pipe for underground use

"Black polyethylene" seems to commonly refer to HDPE pipe, which is pretty comparable to PEX. "Just" PE pipe is cheaper and less durable than HDPE - I'd advise against that underground. PEXa ("...
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  • 61
6 votes

What metal is most suitable for a ladder submerged in an underground water tank?

To add a bit to the question from Pavel in the comments of Ecnerwals answer: Stainless steel structures in swimming pools are known to be prone to SCC. The use of standard austenitic stainless steels ...
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  • 162
6 votes

Can I have utility location done well in advance of a fence project?

I see you are from New York. You must call 811 48 hours and up to 10 days before you dig an inch on your property. Unless you know where every wire or service is buried on your property and how deep, ...
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  • 4,407
6 votes

What material pipe to carry water to a detached garage

Ask the supply house if they have a waterworks division or if they can give the name of a local waterworks distributor. (Ferguson is a national waterworks distributor who happens to have branches in a ...
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  • 20.5k
5 votes
Accepted

Future underground electrical supply

Definitely run the largest conduit you can obtain across the driveway. Possibly two or three or four parallel runs -- you don't know if you will eventually want to use one for low-voltage cabling, ...
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5 votes

How to bury electrical wiring

Sure, you can...but as far as whether you should then no. I know its probably not what you're thinking of at the moment but in the future, among other problems, someone digging around in the garden ...
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4 votes
Accepted

Running Cable Underground in PVC Conduit - Do I bond the PVC segments before pulling the wire through?

Is there a simple, definitive answer to this? Yes It may seem more convenient to install the wire as you go in a very few cases but the National Electrical Code prohibits it and is quite clear. From ...
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  • 19.4k
4 votes

Using 1.25" SCH 40 PVC pipe to protect hose for irrigation

Rather than "hose in pipe", use 200 PSI (if you want the tough stuff) black polyethylene pipe, and appropriate fittings, and no hose inside it. (Or schedule 80 pipe as suggested in comments, ...
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  • 139k
4 votes

Can I pour concrete over a PVC sewer pipe without damaging it?

I would move the flagpole to a different location so you do not disturb that PVC pipe. Also, I would contact the sewer company and ask how deep their piping is since most sewer piping is much deeper ...
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  • 12.2k
4 votes

UFB cable in conduit?

UF-B is rated for direct burial, though you'd be better served by running through conduit for a couple of reasons. Conduit doesn't have to be buried as deeply If When the cable fails, conduit makes ...
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  • 31.1k
4 votes

UFB cable in conduit?

Aluminum is your friend. Really. First, I strongly advise aluminum wire such as MH feeder. Copper just doesn't make sense on heavy feeder. Aluminum feeder has always been reliable (unlike what you ...
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3 votes

Seeking good method to locate short on buried AC power cable

Cheapest and easiest: Put a load (e.g., incandescent light bulb) on the short circuit (A to neutral). Then follow the cable with a non-contact AC current detector. The detector will stop beeping ...
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  • 2,539
3 votes
Accepted

How serious is building subsidence

The very likely outcome will be that the structural engineer will go away to do the necessary calculations, specify the requirement for the underpinning to be carried out by a contractor, and the tree ...
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  • 2,360
3 votes
Accepted

Help identify (abandoned?) buried line

It turned out to be abandoned electrical. Photos below (cell phone for scale) DigSafe came out and confirmed it was not a City service (gas, hydro, transit, water, etc.) They checked out the line and ...
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  • 479
3 votes

Requirements for adding outdoor outlets

You can use most types of conduit outdoors, though some will require liquidtight fittings. Cost wise, and due to the ease of use, I'd recommend schedule 80 PVC conduit. schedule 80 PVC conduit http:/...
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  • 129k
3 votes

What's the easiest way to cut a chunk out of a buried railroad tie?

Do you really need to remove it? If this is in a mild climate, you could simply place the deck pier on top of it and secure it, perhaps by drilling into the tie and attaching with spikes, cable, etc. ...
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  • 12.1k

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