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Unanswered Questions

6,429 questions with no upvoted or accepted answers
8
votes
4answers
720 views

Basement Bathroom Plumbing - Rough in Backwater Valve

I am trying to figure out how in the world to frame this basement bathroom. As you can see from the image, there is a backwater valve that would end up right in the middle of the room. I know that ...
7
votes
3answers
459 views

Per IRC, are flexible PVC couplings ever allowed to be used above ground for PVC to PVC connections?

It is my understanding that flexible PVC couplings (e.g. Fernco) meet the definition of Mechanical Joint in the international residential code. The 2015 IRC prohibits the use of Mechanical Joints on ...
5
votes
1answer
46 views

Moving some plumbing for a kitchen remodel - loop vent for kitchen island

I just want to make sure my plan for moving some plumbing around for a kitchen remodel is sound. I am moving the kitchen sink from the wall to an island. I've never done a loop vent before and all the ...
5
votes
2answers
87 views

How to handle large bluestone slabs

I'm looking for tips on how to handle large bluestone slabs. Each is 24" square, 1.5" thick, and weighs 80 lbs. They are geo-cut with thermal surface treatment. Presently I have 100 of these slabs ...
5
votes
2answers
297 views

Is there a recessed floor box for a water supply?

You know how they have those floor boxes that set in concrete with a flush cover, and when you open it there's electrical outlets inside, but when closed it's flat like the floor and not in the way? (...
5
votes
1answer
155 views

Adding a C wire to older 3 wire

How do I use the green wire as a C wire as suggested in most installation instructions for the newer wi-fi thermostats? They all reference terminal strips at the furnace, all I have is the 3 wire ...
5
votes
1answer
323 views

Is it Code to support Class 2 (thermostat) wires using a gas line?

Related to this question. Our gas furnace, while quite functional, has some quirks in its installation. One of them is that the installers cut off the old (original to the house) thermostat wires at ...
5
votes
4answers
2k views

Why does hot water only run for 30 seconds in bathtub?

In the bathroom of this rental is a tub with a shower diverter. It's an older setup with a hot & cold faucet and a center valve (one direction diverts to shower, the other to the tub faucet). If ...
5
votes
4answers
767 views

What is the proper way to convert a pair of three-way (SPDT) switches into a single two-way (SPST) switch?

I'm in the process of replacing some of the light switches in my house with smart switches, Wemo Light Switches in this case. I've had no problem with the replacement of my One-way switches (SPST I ...
5
votes
2answers
261 views

What should be used between a concrete tub and wall tile?

I have an older home that has a large, decorative concrete bathtub/shower with tiled enclosure walls. The walls behind the tile and tub are poured concrete. (Yes, the house is very sturdily built.) ...
5
votes
2answers
8k views

What could be causing vibration in my furnace?

I have a vibraton in furnace only when flame is lit. Blower motor seems fine. Is this vibration normal? Recently replaced inducer motor. Heat exchanger has been replaced once. Does not appear to be ...
5
votes
2answers
904 views

Are there any advantages to using higher priced sealers?

I want to use a water based sealer on my pavers to bring out the color and also for some resistance against dirt and fading. I went to the store and saw sealers varying in price from about $11 per ...
5
votes
2answers
1k views

How would I ground an internal ethernet surge protector?

I have a Cat-6 cable running to an external PoE security camera that I'd like to have surge protected, but I'm unsure how to ground the protector. It has a prong coming off that I assume is the ground ...
4
votes
1answer
37 views

Microbubbles on kitchen cabinet doors using HVLP sprayer, how to fix the issue?

We're trying to paint our kitchen cabinet doors white but keep getting a ton of microbubbles in the process. We have primed the doors twice using B-I-N Shellac-Based White Interior Primer and Sealer ...
4
votes
1answer
71 views

sealer on soapstone

I just had a soapstone counter installed and they sealed it before they left. From what I've read, soapstone is oiled or waxed, not sealed. Does the sealer need to be removed if I want to use ...

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