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37 votes

Is there a need to replace wiring if I tripped the microwave oven when drilling through drywall?

Code never prohibits the use of conduit. Even if it isn't required, some installers might want it for future pulls or just protection. Non-metallic cable is the minimum standard. Many municipalities ...
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35 votes

How can I cut this recessed PVC pipe?

When I had to do this for our basement I used an "Inside Pipe Cutter", a fancy bit that fits into your standard drill. Looks something like this: You chuck it in your drill, put the blade at ...
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28 votes
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A 1" T fits the pipe and a 1" valve does not, why?

That valve is for a different type of piping system called CPVC and the sizes and fittings are different. The difference is deliberate because CPVC is rated for hot water whereas regular PVC is not; ...
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28 votes
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Is it safe to use Category 1 80,000BTU furnace with 2 inch PVC exhaust?

HELL NO Whichever joker is installing an 80% furnace with a PVC pipe for the exhaust needs their license revoked pronto, because that's a patent CO hazard. Non-condensing appliances operate at flue ...
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24 votes

Is there anything to help reinforce PVC pipe?

Either you glued them correctly (I prefer "cleaner, then primer, then glue" for the most reliable connections) or you'll need to re-glue them after the joints fail. Nothing you add to the ...
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  • 132k
24 votes

Is there a need to replace wiring if I tripped the microwave oven when drilling through drywall?

Answer based on new images, previous answers were assuming conduit. Based on the picture that was edited in later, you have nicked an electric cable directly rather than drilling into conduit. I don'...
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21 votes
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How to create a hidden plug for PVC pipe

Given all the ideas, the obvious solution would seem to be don't use sand. Instead, fill the bottom pipe with cement. Or fill it mostly with gravel with a few inches of cement or silicone sealant ...
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  • 12.1k
16 votes

Is there a need to replace wiring if I tripped the microwave oven when drilling through drywall?

Actually, it is quite the opposite. Most states allow the use of non-metallic cable or conduit, but some only allow conduit. Conduit comes in several varieties, including PVC. PVC conduit is similar ...
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15 votes
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White PVC pipe for electrical wiring

Don't mix your (PVC) streams Electrical PVC conduit and PVC sanitary (supply, DWV) piping may look similar (save for the color), but are made to very different standards. Plumbing PVC needs to be ...
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14 votes

Is there a need to replace wiring if I tripped the microwave oven when drilling through drywall?

The wire is nicked. It is thinner than it's supposed to be, and will overheat and start a fire there unless it is repaired. PVC's fire retardant capabilities are notional at best, so you really want/...
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13 votes
Accepted

What is this part near the entry point to my irrigation system

That is a strainer wye. There is a metal mesh filter in there to trap sediment/debris; it can be removed and cleaned as necessary.
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12 votes

How can I cut this recessed PVC pipe?

A pipe cutter may fit in the hole.
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  • 2,204
11 votes

How to create a hidden plug for PVC pipe

Two ideas... Fill the pipe with sand, and then use an expandable foam like "Great Stuff" to fill the last several inches of the pipe. The polyurethane foam should stick well to the inside of the PVC,...
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  • 26.6k
11 votes

garbage disposal relocation

Good pictures. You have an unusual configuration for that drain. Typically, there is only one drain line coming from the wall into the kitchen cabinet. That would have one trap and upstream of the ...
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  • 3,078
11 votes
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How can I cut this recessed PVC pipe?

A Dremel rotary tool seems perfect for this. If you don't have one then this seems like a good chance to justify buying one as you will quickly find new uses for it. You can use it to cut from outside ...
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11 votes

Is an ethernet cable threaded inside a metal conduit is more protected from electromagnetic interference?

You discovered wrong. Ethernet runs at 100MHz and up, your line voltage at 60Hz is virtually DC at that frequently difference. With that said, you should still run your data cables in conduit. Not for ...
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  • 1,602
10 votes

How can I cut this recessed PVC pipe?

An oscillating tool might fit beside the pipe with blade rotated to 90 degrees Or buy this fancy blade for it
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  • 4,122
10 votes

How can I cut this recessed PVC pipe?

Hands down, cable saw This works faster than you think. The only thing you have to be careful with, mark the pipe with sharpie first and watch that you keep your cut square. If you first score the ...
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9 votes

What is the lifespan of pvc cement?

When installed properly, the life should be indefinite. The hot/cold should have little effect, unless those temperatures are extreme.
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  • 569
9 votes

PVC threaded fitting broken off. How can I remove?

There are also internal pipe wrenches available just for this situation:
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  • 191
9 votes
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Adding bug screen to 3/4 PVC

Bunch the screen over the end of the pipe bent back along the nearby sides of the pipe, Then secure in place with a suitably sized screw gear clamp. Picture Source
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  • 61k
9 votes

Is EMT or PVC more durable under a porch that gets rain?

Steel EMT will rust over time in a buried environment with moisture where PVC will last virtually forever unless it's exposed to sunlight. I'd go with PVC which is also likely to be less expensive.
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  • 20.3k
9 votes

Can I just cover PVC pipes with elbows with soil underground?

Add loose soil then carefully compact next to and under the pipes. Repeat until you have compacted soil fully supporting the pipes from underneath. Then add soil in batches compacting each batch with ...
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  • 19.6k
8 votes
Accepted

PVC pipe cutter not working properly

It sounds like you're using a crappy copper pipe cutter. To cut PVC, you want one of these instead: I've used mine to cut thousands of PVC pipes and it does the job quickly and easily. You can ...
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  • 12.2k
8 votes
Accepted

Does it matter what kind of pipe is used for a sink drain?

There are two main factors that determine what is used: Code requirements (as well as the project's specifications) Cost ABS and PVC are the cheapest, however there can be limitations with their use ...
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  • 4,272
8 votes
Accepted

How can I cut a vinyl chair mat to shorten it?

I've cut chair mats by laying them on a flat work surface. Then secure a metal straight edge along the cut line. (In my case I clamped a long piece of aluminum bar stock in place to the work surface ...
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  • 61k
8 votes
Accepted

How can I repair a leak in a PVC water line without bringing down the system for an extended period of time?

I would use Oatey “hot” glue it sets faster than regular but cost a bit more , only get a small can as it evaporates faster also. You can see the label most standard solvents require an hour or longer ...
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  • 95.4k
8 votes
Accepted

How to unfix a pvc tube glued to another pvc tube?

The glue normally used is a pvc cement and « welds » the joint together. I would cut that tee out and fit a new one with extensions to meet up with the existing pipes using couplers. When you get the ...
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  • 20.6k
8 votes

Is an ethernet cable threaded inside a metal conduit is more protected from electromagnetic interference?

Speaking as somebody who's spent much more time messing around with networks and power cables than with bricks and beams: keep them moderately separated but don't go full paranoid. Power cables are ...
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8 votes

What is this grit/sand like build up on the piping under my bathroom sink?

It appears from the photo that the drain is leaking, albeit slowly, and what you are seeing are mineral deposits from your water.
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