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

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4
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1answer
824 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
votes
2answers
10k 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
15k 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
votes
2answers
22k 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
votes
1answer
907 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
votes
2answers
90 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
votes
4answers
21k 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
votes
3answers
3k 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
9k 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
votes
4answers
13k views

What is causing a cat urine smell in my bathroom?

My bathroom has started smelling like cat urine. We have NO cats. I think the smell is coming from the shower drain. What could this smell be coming from and how do I get rid of it?
4
votes
4answers
15k 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
votes
3answers
7k 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 ...
4
votes
7answers
43k 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
votes
1answer
551 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
votes
2answers
2k 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
votes
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
votes
2answers
1k 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
votes
5answers
57k 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
votes
1answer
556 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
votes
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
1k 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
votes
3answers
7k 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
643 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
255 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
votes
1answer
925 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
votes
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
140 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
votes
2answers
313 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 ...
4
votes
2answers
177 views

Copper tubing for refrigerator

My copper tubing for the water line to my refrigerator became slightly bent while I was installing it is it a big deal should I buy new copper tubing?
4
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1answer
19k 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
votes
2answers
3k views

What killed my kitchen faucet pressure?

I have a one-handle "Marielle" model Pfister kitchen faucet diagrammed here. It leaked, so I replaced the cartridge, which solved the problem. A few weeks later, I happened to drain my hot water ...
4
votes
1answer
2k views

Is venting a vertical waste line required?

I am putting a bathroom in a section of the house that has a crawlspace under it. The main drain is in the basement area of the house. The soil pipes will run horizontally in the crawlspace, then a ...
4
votes
1answer
11k views

How do I calculate the takeoff for a 45 degree elbow joint?

I'm trying to install a 45° elbow joint in PVC. I've found several suggestions online, but frankly, they are incomprehensible to me and seem contradictory of one another: ...
4
votes
1answer
2k views

How to drill and waterproof a hole in cinder block for PVC drain?

I have a new electric hybrid water heater that emits condensation from a drain tube (normal) which is a bit different than a traditional electric water heater. Right now I have a bucket under the ...
4
votes
1answer
1k views

How do I turn off this sprinkler valve?

We just purchased our home this summer, so I've never gone through the process of turning off the sprinklers for the winter (we're in Utah, so hard freezes are possible). The stop-and-waste valve is ...
4
votes
3answers
362 views

Is it legal to connect a combi expansion pipe to a drainpipe?

Is it legal to install a combi boiler in a cupboard in a bedroom and connect the expansion pipe to a cast iron drainpipe? The person who has done it ownes one of the four flats in our house. Recently ...
4
votes
2answers
964 views

Can (and should) I replace the hose connecting a cold water expansion vessel to the cold water supply myself?

We recently had a small flood in our apartment. I found that the metal-sheathed rubber hose connecting the cold water supply to the blue cold water expansion vessel had a wide split in it. The water ...
4
votes
5answers
9k views

What would cause a slight thumping noise in water pipes on toilet and washer?

Everyone once in a while, some of the pipes in our house make some noise, mainly only when you flush a the one toilet, or use the washer. When using the sinks, hoses, or shower, the noise is not ...
4
votes
3answers
2k views

Is it possible to buy just the fins or the copper pipe with fins for baseboard radiator?

I have a project to build and I want to use finned tubing (like in baseboard radiators) but I am unable to find the tubing without buying the enclosure as well. (This is for a hobby project - I want ...
4
votes
4answers
2k views

How can I fit a pipe inside another pipe?

Does anyone here with experience in plumbing or piping know if a 3/4" pipe can fit inside a 1" pipe to the point where you can slide it in and out like a telescope to make an adjustable stand post? ...
4
votes
1answer
405 views

Should a twisted copper pipe be replaced?

While replacing a hot water tank I foolishly twisted the out pipe by losing my grip on the wrench. The copper pipe twisted, so I twisted it back gently, but it now has a kink in it. Is this likely ...
4
votes
2answers
305 views

Graywater overflow plumbing… which design to choose?

I'm working on replumbing my utility room and I'm adding a graywater system. Local codes are remarkably permissive but require an overflow to the sewer/septic system in case of graywater blockage or ...
4
votes
1answer
901 views

What are the differences between an expansion tank and a pressure sensor?

We have a red expansion tank in our building. We have so many problems with this tank. Every 3 months we have to change the tanks tube because the tube is perforated every 3 months. Now an expert ...
4
votes
1answer
4k views

Hot Water Circulating System Problems

My hot water circulating system was installed in 2006. It has a dedicated return line from all faucets. I've been having trouble lately with the hot water, it turns cold at the faucet when the pump ...
4
votes
3answers
3k views

Need to push fridge back but don't want to squish water line

So I bought a new fridge that happens to be a little deeper than counter depth. After getting the fridge to our house, we realized that our cabinetry is designed for counter depth. We actually like ...
4
votes
4answers
2k views

Why are all the toilets in my house running intermittently?

All of my toilets in the house have started to run intermittently. Is there something wrong with the plumbing or could it be that the flapper has gone bad on all the toilets at the same time?
4
votes
1answer
296 views

How can I run plumbing from house to a nearby new office 1.5m away?

I am building a new office next to the house; it is about 1.5m away. I need to run, from the house's upstairs bathroom, 1 hot, 1 cold, and radiator with return (all of which I believe are 28mm to ...
4
votes
3answers
7k views

Why isn't there hot water in the shower, when there is hot water in the rest of the condo?

I moved into a condo two days ago, and found that while the rest of the plumbing in the house has hot water, the shower when turned to hot just has a cool trickle emanating from the tap. The cold ...
4
votes
3answers
6k views

What are my options for installing a water softener on the opposite side of the house from the main water supply?

Background Info My main water supply on my home is located on the east wall of the home, whereas my garage is located on the west side of the home. There is no water softener loop in the home, and in ...
4
votes
1answer
1k views

How do I replace this bathtub handle that has a plastic piece?

I have followed a number of videos, but they all seem to have a copper (?) stem. At this point I'm up to some plastic piece that has no notches (namely around the metal piece) to use a wrench on. ...