For questions about the supply and removal of water and liquid waste.

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2answers
5k views

How to tell when a plumbing fitting is tightened correctly?

I replaced the supply valve on my bathroom sink with this ¼-turn angle valve. Both valves (hot and cold) are leaking about 1 drop every few seconds at the valve's input. I got them hand ...
4
votes
3answers
560 views

How can I make these bath valves easier to use?

I'm looking for a way to make the valves in the pictures below easier for my mother to use. She has a bad case of arthritis in here hands, so this was suggested by a nurse. I would really prefer any ...
4
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4answers
27k views

Sink tailpiece doesn't line up with trap

After installing a new bathroom sink, the drain tailpiece doesn't line up with the trap coming out of the wall. I've seen flexible accordion hoses for this, but I think that violates code ...
4
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2answers
2k views

Is this shower trap better than a P-Trap?

Here in Brazil almost all shower and floor drains are made using a device that translate as "siphoned box" and work as a trap collecting water from the sink, tub and shower. Is that any better ...
4
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1answer
161 views

What's this top part of this faucet used for?

This is a faucet coming out of a wall in my backyard. What is that top white round part used for? What tool is used to screw/unscrew it?
4
votes
1answer
1k views

How can I install a J-Trap for a bathroom sink with limited space?

Well, it was my first difficult handman project and I got this far... Below is a photo of my installation right now. Every single diagram I've seen has the J-Trap facing down. Is there any way ...
4
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1answer
6k views

How can I fix a sink drain stop which won't hold water?

I have a bathroom sink & fixture which are about a year old. The drain has worked fine, until about a month ago. Recently, any water I try to hold in the sink slowly leaks out. This is mildly ...
4
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2answers
3k views

Do I need to replace my hot water tank's pressure release valve?

Recently we had an extended water outage. When water came back, pressure in the lines was much higher. The hot water heater started leaking from the pressure release valve and after flipping it a ...
4
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4answers
7k views

Can a plumbing vent go “up” and then back “down” to the connection with the vent stack?

I am changing the location of all the fixtures in my bathroom. This move will put the toilet and sink on the opposite wall from the stack. I was originally planning on running a vent up the wall ...
4
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1answer
99 views

Questions concerning dual flush converters

I'm considering purchasing dual-flush converters for our toilets and was curious if anyone had thoughts on them. Specifically, I'd like to know: Are there any major disadvantages to using them? ...
4
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3answers
225 views

Where do I begin finding estimates for problems with my potential first home?

I'm looking at purchasing an older home as a primary dwelling. On going through the house with an experienced Realtor and several experienced DIY people for reference (but not a home inspector or ...
4
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2answers
462 views

Any difference for a pressure-assisted toilet?

Can a gravity flush toilet be swapped out for a pressure-assisted toilet? Are there any differences in plumbing, mounting, etc.?
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2answers
1k views

How do I install a water line to my refrigerator?

Recently bought a new refrigerator that has an ice maker and now I want to run a water line to the refrigerator (there is not one there right now). The cold water line is pretty much right below the ...
4
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2answers
8k views

What are the advantages and disadvantage of using “pushfit” pipe fittings?

There are many makes of pushfit pipe fittings that make it a lot easer to join pipes, incluing copper pipes, e,g: John Guest Speedfit Cuprofit®- copper push fit Hepworth-HEP20 (please expand the ...
4
votes
1answer
184 views

Is “hissing” sound from a water main a good indication that water is in use?

I recently received a notification from my water department that they suspect I have a leak somewhere in my house. Apparently, the meter outside has a mechanism that goes off if water has been ...
4
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2answers
81 views

How can I reposition a soldered copper 90-degree fitting

I have a 90 coming out of my wall in my utility room to turn the copper down the wall. I would like to swing it up as I have a taller softener. Do I need to disassemble and start over or might I ...
4
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2answers
344 views

Can p-trap be installed inside wall?

I have a new vanity I am installing in my guest bathroom. The current drain height is the same height as a storage shelf below my sink and does not allow the vanity to sit flush against the wall. ...
4
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2answers
29k views

Is PVC Schedule 40 pipe safe to use in a potable water supply?

I have not had a problem for nine years and never noticed what my plumbing pipes used. My hot and cold water feed away from heater use "Bristol 1120 Schedule 40 PVC. 480 PSI 73 deg." Is there strong ...
4
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2answers
257 views

What could cause poor drainage in the kitchen and baths?

After having my septic system (tank) cleaned about a month ago, I've noticed a foul odor in the bathroom of the master bedroom. I've also noticed the smell outside near the master bedroom. It's not ...
4
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1answer
6k views

What are the relative merits of stainless steel vs. granite composite sinks?

I am about to begin a project to install a bar sink. I am debating between granite composite, such as the Blanco, and a conventional stainless steel sink. In either case, the sink will be mounted ...
4
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1answer
5k views

Do waste water pipes for kitchens and bathrooms require a minimum slope to avoid clogging?

When I had a dishwasher installed, the plumber refused to install the waste water pipe horizontally, saying that this would get it to clog all the time. He left a roughly 1:10 slope on it. I thought ...
4
votes
3answers
1k views

How do I connect to a dishwasher bushing?

I just bought a new dishwasher for a newly renovated house that I just bought. I am trying to install it myself. My sink drain pipe has one of these sticking out the side above the U pipe thingy like ...
4
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1answer
888 views

How far can I move my bath tub trap from the vent?

I am remodeling the master bath and I need to relocate the bath tub. I will be extending the trap about 3-4' from where it is now. I'm wondering if I need to relocate the vent pipe as well. How far ...
4
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2answers
11k views

Proper way to attach tapered, threaded connections?

I've been ripping out the PB water line throughout my house and replacing with PEX and a bit of copper piping. However, the few threaded fittings each have very slow leaks. Above the water tank I ...
4
votes
1answer
16k views

How to fix a bathtub faucet that leaks only when the shower runs?

I just moved into an apartment and the faucet in the tub is fine when all of the water is off. It leaks when I turn on the water and switch it to the shower head. What could be the problem? It's a ...
4
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2answers
24k views

Why is my new hot water heater making a clicking noise?

I have a relatively new water heater (installed by previous owner). I've only been in the house a few months and did not notice this noise until after being there a few weeks. What happens is after ...
4
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1answer
975 views

Should I use 1/2“ or 3/4” fixtures for a new shower?

I am having a new shower built along with a new bathroom altogether... I selected Grohe hardware and wanted to know if I should go with the 1/2" or 3/4" since I will have a rain shower, hand held ...
4
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2answers
157 views

Repairing leaking DWV vertical 3" thin wall PVC

While painting, my wife discovered some mold on top of the baseboards, and being curious I investigated. What I found pulling the baseboards is they were covered in black mold on the backside, as well ...
4
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3answers
4k views

Toilet flange conundrum

We are remodelling our bathroom and installing a new toilet. When we took the existing toilet off, we found the cast iron flange was broken, brittle and in need of replacing. We could maybe get away ...
4
votes
1answer
11k views

Does a reverse osmosis system drain constantly?

I have come across a pharmacy grade reverse osmosis filter system. I would like to install it in my kitchen but before I do, I need some questions answered. Does the system drain constantly or just ...
4
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1answer
22k views

Can I move my washer and dryer 10 feet to the right?

My basement is being renovated, and I'd like to have my washer and dryer moved about 10 feet to the right of their current location. They would still be against the same wall, just further down. The ...
4
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4answers
18k views

How do I repair my cracked shower pan?

My shower pan, made of gel-coated fiber glass, has three cracks, as shown in the photo below. The cracks radiate fairly straight from the drain in the center at twelve, four, and eight o'clock. (All ...
4
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3answers
8k views

Do I have to bury PVC pipe if used outdoors?

I will be installing a hose spigot in a lower patio area that, till now, has had to have several lengths of hose to provide water for some potted plants. There is an existing spigot on a 3/4" copper ...
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7answers
50k views

What can I do about a toilet flange that is 1/4" below the finished floor?

I used two wax seals to set my toilet since the flange is 1/4" below the new tile. At first it seemed to be water tight but after a few flushes I noticed water seeping and pulled it out. As can be ...
4
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1answer
601 views

What is this pipe called, and how does it work? (Round II)

OK, thanks for people's help on my last question, now I've confused myself again. I came across this picture, similar to the last question, but I don't think it's a cleanout. It looks like a vent to ...
4
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2answers
3k views

How do I connect 1/4“ plastic tube to 3/8” plastic tube?

I am installing a R/O filter under my sink. The drain for the waste water attached to my dish-washer drain hose provides a 3/8" connection (Watts Premier 164020 DLA-D Drain Line Plumbing Adapter). ...
4
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1answer
2k views

How do I keep water from getting in and out of a dishwasher drain air gap?

I have no idea what this is called, so I apologize for the vague title. If someone knows what it is, feel free to edit it. When I turned on my dishwasher (just moved in), water started spewing from ...
4
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2answers
2k views

How do I fix this leaking tub faucet?

I have an old tub/shower with 3 handles in it (hot/cold/shower on) that are all twist knobs. The hot or cold can not fully disengage because they are a bit older and have some sediment built up in ...
4
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5answers
64k views

How do I pressure test a natural gas line and what do the valve pressure ratings mean?

I'm planning to add an appliance to my house, and will want to do a pressure test of the newly installed gas lines. My main shutoff says 175 PSI, but most of the appliance valves say either 1/2 or 5 ...
4
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1answer
567 views

How should I use a plumber's snake?

How should I use a plumber's snake if my kitchen sink drain got clogged? Are there any suggestions on when this device is applicable and how to use it?
4
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1answer
2k views

How can I replace my main water shutoff valve?

I just recently purchased a house that was built in 1979 with galvanized plumbing. The water main just outside the house looks like this: I'm planning to replace it, but I want to make sure it's ...
4
votes
1answer
2k views

Can I grind a shallow channel in my basement concrete to correct the height of a shower drain pipe?

Long story short - the people who finished the basement bathroom did so without a permit, and they made full use of the fact that their work wasn't about to be inspected or subject to building codes. ...
4
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3answers
8k views

How do I diagnose weak water flow from tub faucet and shower?

I have a shower that has very low flow from the hot and cold water and also from the shower when you turn the valve to switch it to the shower. All of the other fixtures in the house have strong flow ...
4
votes
1answer
680 views

Why is water only coming through the handheld hose?

I have a hose at my kitchen sink, installed alongside the cold water faucet. Every once in awhile when I press the hose trigger, it becomes stuck and will not return to the off position ...
4
votes
1answer
278 views

How can I prevent a faucet retaining nut from freezing to a steel washer?

My real question, after several hours spent removing the old faucet (progressing from tapping the basin wrench with a mallet, to an overnight soak in penetrating oil, to cutting it off with an air ...
4
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1answer
16k views

How can I clean hard water buildup from pipes?

I've basically confirmed that my overall plumbing problems are down to hard water buildup. My softener has been out of action for about a month or two (waiting on a part), so I have at least that much ...
4
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1answer
968 views

Do I need to install the grounding clamp on a water softener if both input and output are PEX?

We are installing a Whirlpool water softener in a new home with PEX water lines. The installation manual says to place the supplied ground clamp over both inlet and outlet water lines. As I mentioned ...
4
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2answers
4k views

Why does my kitchen faucet suddenly have too much water pressure?

I have a single lever Kohler kitchen faucet. The water comes out with so much pressure that if I am trying to rinse anything it makes water spray everywhere. The faucet has not always done this. Is ...
4
votes
1answer
161 views

Why mix cooking oil with epoxy to repair a toilet drain pipe?

Today we called a plumber to repair a leak in the seal of a toilet drain pipe. He used metal-filled epoxy putty to seal up the area around the leaking joint, as actually disassembling the joint looks ...
4
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2answers
420 views

Can the high efficiency washing machine drain into the kitchen waste stack?

newbie here. We live in a condo that is the third floor of a converted Victorian home (there are two units below us). We have in-unit laundry - a stacked high-efficiency washer and dryer (both front ...