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25 votes
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Why do I have extra copper tubing connected to each bathroom sink supply line?

That's a manifold and those other pipes go on to feed other devices. Very likely that the plumbers ran one 3/4" copper tube to the room, then branched off there and ran the other 3/4" and 1/...
Chris O's user avatar
  • 7,404
15 votes

Why do I have extra copper tubing connected to each bathroom sink supply line?

I don't have code requirements handy, but there was another question here recently that was similar, and the answer there was that plumbing code did not allow copper pipe joints to be embedded in ...
Milwrdfan's user avatar
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9 votes
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How do I determine the "finished floor height" in a carpeted room?

The finished floor height will be the height of the floor without carpet and pad. The toilet gets installed first. Then carpet and pad trimmed around the base of the toilet. ( Haven't had a ...
RMDman's user avatar
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9 votes
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Adjustable Receptacle Box - Drywall Bulging

Your obvious problem is the height of the screws holding the bracket in place where you snugged down the drywall above and below that bracket location and caused the drywall to fracture due to the ...
Milwrdfan's user avatar
  • 5,450
8 votes

How do I determine the "finished floor height" in a carpeted room?

Most of the time, bathrooms are carpeted after the fittings, including the toilet, are already in. With a good fitter, you won't see any difference, and when comes the time to change the carpet, which ...
Tim's user avatar
  • 5,336
8 votes
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Proper Use of a Mud Ring?

What you have there is a cover plate. This is how the receptacle would be mounted in an exposed work type of installation. A mud ring would look like this (thanks to homedepot.com for the image): The ...
Greg Hill's user avatar
  • 33.5k
6 votes

Plastic electrical cut-in boxes with 3/8s tabs

It is certainly acceptable for the boxes to sit back a little; NEC 314.20 allows a flush mount box to be up to 1/4" back in a non-combustible material like drywall. (See below.) But without a ...
batsplatsterson's user avatar
6 votes

How would one plumb two bathrooms from one rough-in?

You are "f'ing" crazy if you think that raising part of your floor is easier than doing some very very minor concrete work. There are all these gotchas for raising a floor and then ...
DMoore's user avatar
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6 votes
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Receptacle and Switch Box Placement - 5/8" Drywall

If you're installing new boxes or otherwise need to adjust existing boxes, by all means set them in the right position. However, if the existing boxes were well-placed originally it may not be ...
Greg Hill's user avatar
  • 33.5k
5 votes
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What is common practice when doing electrical rough-in for recessed lights in a drop ceiling and walls are not yet finished?

Just leave a tail hanging at the location of the first light can. Tape the cleanly-cut end (in case someone does something stupid at the panel) and let the inspector know what's up. Everything after ...
isherwood's user avatar
  • 149k
5 votes

New Medicine Cabinet - Stud Removal

You can do a number of things here: Shorten the stud board coming down to the header and move the header up 1.5” to 2” inches (I would do that ) - a nice oscillating cutting tool would make that easy ...
Ken's user avatar
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5 votes
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How can I reduce a rough opening height 1-1/4"?

Cut a 2x4 to length and rip 1-1/4" off each side. Put those up against the top plate, one inside and one outside. The half inch hollow in between is inconsequential. End view _____ |_____| <-- ...
isherwood's user avatar
  • 149k
5 votes
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How to fix drain pipe threads

Pipe taps appropriately sized are available for hire, along with something to drive them. A friendly plumber may well have a fitting one, and would do the job for a drink? Otherwise, I'd go with pvc ...
Tim's user avatar
  • 5,336
4 votes

How can I reduce a rough opening height 1-1/4"?

You should be able to stack two furring strips on each side of the top plate. The one I'm looking at right now is 5/8" thick, stacked would be 1.25".
JACK's user avatar
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4 votes

New Medicine Cabinet - Stud Removal

You want to follow the instructions given to cut the upper short stud some and then move the header up the requisite amount. Make sure to re-nail the lower end of the short stud to the raised header. ...
Michael Karas's user avatar
  • 66.5k
4 votes

10 inch rough toilet but heating baseboard is in the way

I had a weird offset flange in a bathroom where I replaced a toilet and like you, couldn't come close to finding one at my locals shops. At this point one option is to visit a plumbing supply outlet ...
JACK's user avatar
  • 86.2k
4 votes

Can I add strips of lumber to studs in a framed wall to meet plumbing hole size limitations?

Ask your inspection office whether stud shoes are acceptable. They're sometimes listed for code compliance. Quick and easy, if not terribly cheap.
isherwood's user avatar
  • 149k
4 votes
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Plastic electrical cut-in boxes with 3/8s tabs

IMHO, a truly professional job won't be using plastic boxes. I don't think the 1/8" is a problem - and it keeps from having the boxes proud of the surface, which IS a problem.
Ecnerwal's user avatar
  • 226k
4 votes
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Can NM cable run directly behind a junction box in a wall?

The only two things that come to mind are that a box must be set at an appropriate depth so that it rises to the surface of the final wall covering, and that NM-B cable must be protected by a nail ...
Greg Hill's user avatar
  • 33.5k
3 votes

Is my Milwaukee drill defective?

What size battery do you have? When using large bits the drill draws a high amperage the smaller batteries just cannot sustain a heavy load. For example a 1 amp hour drill may be able to drill an inch ...
Ed Beal's user avatar
  • 103k
3 votes

How do I identify rough-in plumbing pipes?

Closet to the corner against wall is for a shower or bath drain. The next is toilet drain. The next is where you attach the sink drain. The fourth (closest to camera) is the main stack for the ...
Tyson's user avatar
  • 4,230
3 votes
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How to route wire around a box?

The box must be large enough for the wire fill and device by code since you are installing a 20 amp circuit it should be #12 wire. #12 wire has a volume of 2.25 per conductor and 4.5 for the device so ...
Ed Beal's user avatar
  • 103k
3 votes

How would one plumb two bathrooms from one rough-in?

With a 9’ ceiling you can do what you want without cutting the slab. The only negative is there will be a step into the bathroom (not a horrible thing I have had to do this for a 1/2 bath because the ...
Ed Beal's user avatar
  • 103k
3 votes
Accepted

What can I do when the rough in hole in my concrete is too large for my toilet flange?

Pour concrete (or mortar mix) to fill the space and embed your bolts into. Wrap or otherwise protect the pipe. The UPC says: 312.1 ...Voids around piping passing through concrete floors on the ground ...
Ecnerwal's user avatar
  • 226k
3 votes

Receptacle and Switch Box Placement - 5/8" Drywall

There are lots of options such as spacers, extenders, and mud rings. At the end of the day you will probably save the most money and time by finding an 1/8" shim and placing it behind the ...
MonkeyZeus's user avatar
  • 16.9k
3 votes

Receptacle and Switch Box Placement - 5/8" Drywall

When installing boxes on studs without drywall in place it seems to me that laying a 1.5 inch wide piece of material the same thickness as the intended finish wall against the face of the stud would ...
Jim Stewart's user avatar
  • 22.5k
3 votes

Basement Shower Drain Rough In

Without an actual picture for confirmation, it's hard to be sure, but with a p-trap (which can be adjusted to drain many different ways), a couple of elbows (which can be had anywhere from a 22.5° to ...
FreeMan's user avatar
  • 48k
3 votes

What kind of a test plug to use for DWV inspection

Flexible double test plugs are what I've used in the past.
Fresh Codemonger's user avatar
2 votes

Carlon single-outlet box with bar hanger?

Just use an old work box. Cut the hole in the wall to fit the box. Slide the box in with the tabs folded down. Turn the screws until the tabs flip out and grab the back of the wallboard.
Tester101's user avatar
  • 132k
2 votes

Why would a rough in pipe be under the concrete?

If I had to guess I'd say that the builder expected the wall to pass over that point, and the vanity installed adjacent. You appear to have built your wall tight to the furnace, which isn't ideal for ...
isherwood's user avatar
  • 149k

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