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

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2
votes
1answer
4k views

Why use a Thinner Water Pipe to Branch off From a Tee

Sorry if this question sound naive. Normally in water pipes, when we see another pipe branch off from a T-junction, that pipe is a thinner one. Say, a 3/4" pipe will branch off only a 1/2" pipe in a ...
3
votes
1answer
4k views

What could be causing water to drip from the relief valve of my new gas water heater?

My old hot water tank met its maker about two or three weeks ago, and since then I have installed a new Kenmore 50 gallon gas water heater to replace it. The new water heater seems to work fine, I ...
7
votes
1answer
11k views

How should I build a raised subfloor for my basement bathroom?

I've ripped out the bathroom in my basement that was finished by the previous homeowner. I'm now rebuilding, and curious to the most correct way to go about this. The whole basement was finished ...
7
votes
3answers
7k views

Are hot water returns worth putting in?

Once I saw on an episode of This Old House that they were putting in hot water return lines: pipes that recirculate idle hot water back to the heater so you get hot water right away, instead of ...
3
votes
1answer
654 views

Could water temperature fluctuations be caused by new plumbing?

I'm having a new bathroom installed. I hired a plumber to do all the water works. He ran all the lines; he is now waiting on sink and toilet to arrive to finish installation. Since he ran new line, we ...
5
votes
4answers
2k views

What accessories, aside from faucets, fit into sink faucet holes?

I'm going to replace an existing 3-hole faucet with a single hole faucet in my kitchen sink. I plan on installing a soap dispenser into one of the other holes, but that will still leave me with one ...
4
votes
3answers
575 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
votes
2answers
8k views

Are galvanised steel pipes suitable for supplying hot water?

I am living in an old building where the old galvanized steel pipes are still in use indoors. Rather than upgrading to copper pipes, can I reuse these galvanized steel pipes for hot water (from a ...
2
votes
1answer
954 views

When did it become illegal to use lead solder in residential plumbing?

I'm looking for a citation on when the requirements to use lead-free solder in residential plumbing took effect. Why? On 06/09/2009 a local plumbing company re-plumbed the house I live in. Today we ...
0
votes
1answer
1k views

Is it possible to fix a leak in PP-R piping by injecting some type of substance?

I have a central heating system based on PP-R piping and radiators. The PP-R piping goes under the floor. The problem is that the pressure is droping 0.2 atm / week and I am sure there's a leak ...
1
vote
2answers
968 views

Sizing DHW expansion tank for tankless heater

I have a combined boiler for hydronic heating and DHW. Earlier in the winter, I started insulating as much of the pipes I can easily access. This has led to hot water coming out of the cold water ...
2
votes
3answers
951 views

How can I fix my kitchen sink cheaply?

We live in a condo. Our kitchen sink will gurgle a lot. From time to time, there will be bubbles and even an overflow of bubbles and some sediment coming up from the kitchen drain. Someone has ...
6
votes
3answers
39k views

What size is an ice maker connection?

The ice maker line to my refrigerator currently has no shutoff valve and I'd like to add one but I can't figure out what size the connector is. I purchased a 1/4 inch valve since the ice maker ...
8
votes
9answers
85k views

Why does this toilet clog so often?

My inlaws have one toilet in their house that regularly clogs. They have two more toilets that don't seem to clog at all. They live in a suburb with full plumbing (not a septic tank). The toilet isn't ...
9
votes
4answers
398 views

Removed sink, now what?

We've decided to replace the sink (which was way too small) with one from Ikea. This is how it looks after the removal: Now for the problems: The sink that was there before was a free-hanging one,...
2
votes
4answers
18k views

What is causing my gas water heater to squeal?

I have a gas water heater. Starting yesterday, when the flame is on, the unit makes a squealing noise of moderate volume. The noise stops immediately when the flame turns off. This means it is not ...
6
votes
5answers
21k views

Why is the water in my toilets orange?

My wife and I just moved in to a brand new house and have started to notice that the water in the toilets is an orange color, and is starting to leave stains in the bowl. After looking online briefly, ...
1
vote
2answers
7k views

How can I fix this persistently leaky shower faucet?

Several weeks ago water began slowly dripping from the shower head in our master bath. Also, the underside of the hot water faucet is wet long after the water has been turned off and the shower has ...
5
votes
3answers
11k views

The main water valve won't open fully after I closed it. How do I shut off the water to replace it?

Basically the title says it all. I turned the water for the house off to replace some leaking washing machine shutoff valves, and install stop-cock valves for a laundry sink. When I tried to turn ...
4
votes
5answers
90k views

What could cause bubbling toilet when the shower or sink is running?

One of the two toilets in my rental house is bubbling when the shower or sink in that master bath area are on. In the past, about 6 months ago, I have had plumbers and rotoruter out and they could ...
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
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
votes
3answers
374 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
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 ...
2
votes
2answers
5k views

How do I seal a cracked pipe using epoxy putty?

So, I have a broken pipe exactly on the L join on the wall. It's a huge crack but no big gap, just a curved crack along the pipe. At first I thought of replacing the pipe, but it means that I have to ...
1
vote
1answer
2k views

How do I find out if Air Admittance Valves (AAVs) are allowed in my municipality? [closed]

I saw Richard Trethewey of Ask This Old House install an AAV as part of a kitchen island sink system. I thought I might be able to use one for the water line for my washing machine. I'd like to ...
14
votes
3answers
17k views

How can I tell if these pipes are gas lines or water lines?

I recently moved into an in-law unit of a large old house. In the kitchen, there are two pipes coming out of the wall (one protruding out a little more than the other). I had assumed they were gas ...
2
votes
0answers
60 views

How can I fix my leaky bathtub faucet with minimal damage to the wall? [duplicate]

Possible Duplicate: How to fix a bathtub faucet that leaks only when the shower runs? Our bathtub faucet leaks a steady stream of water. Sometimes this will temporarily slow to a drip if I am ...
3
votes
1answer
662 views

Cleaning film out of plastic drain pipe

The drain pipe and trap on my bathroom sink are made of plastic, and every four to six months I find that it slows down. When I disassemble it, the pipe walls are coated with maybe 1/8" of disgusting ...
4
votes
1answer
2k views

Why is my hot water tank randomly emptying through the overflow pipe?

The other night I woke up thinking it was raining really heavily. I looked out the window to see clear skies, so I popped outside to investigate. Along the side of our house I found a stream of water ...
2
votes
1answer
249 views

how to test water pressure coming out of pipes w/o spilling water

I am remodeling my shower room and have removed tiles and walls exposing the pipe. I would like to add a body massage system w/ 4 heads? How can I test the water pressure to ensure there is enough ...
0
votes
1answer
477 views

Is there a way to adjust this popup drain stopper, or is it defect?

I just installed a new pop-up click clack drain for our glass bathroom sink. The only problem is that it doesn't pop up and down anymore. It did when I first took it out of the box. Here is a similar ...
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 ...
5
votes
1answer
990 views

How can I remove this dried drain cleaner from a kitchen sideboard?

I recently spent a week or so trying to unclog a seriously blocked kitchen sink drain. I tried various things, including One Shot Instant Drain Cleaner (a hardware-store 91% sulphuric acid drain ...
5
votes
2answers
1k views

How to connect a faucet to a buried water line?

I want to install a sink. There is a buried water line (1" poly) to the site of the sink, with a nice long tail on it if needed. The faucet from an old-fashioned separate faucet system, with one input ...
11
votes
8answers
69k views

How to fix stinky bathroom sink?

It smells like really musty water, but the water itself does not smell or taste bad at all. Only happens when I run the water, so it doesn't make the room smell, just when you fill something up or ...
3
votes
1answer
2k views

Increasing water pressure with pump

I live in Karachi, Pakistan. We have underground water tanks and use motors to transfer the amount of water required to overhead tanks that then supply the house. I get lower pressure in my house's ...
3
votes
4answers
3k views

Is temporarily reducing the water supply line an option when installing a water softener?

I am installing a water softener in my house. Currently we're getting the water supply from 1" PEX that has a service loop in the garage. I built my own 1" PVC bypass system for a GE water softener (...
5
votes
9answers
55k views

How tight should threaded brass pipe fittings be?

I'm working with 3/4" brass fittings, which seem pretty robust. Some plumbing fittings should be only finger-tight. My friend said I should use 2 wrenches to make these as tight as I can, and then ...
6
votes
1answer
1k views

Do I have to do anything different to use compression fittings on chrome pipe?

I have a radiator sitting on a concrete floor in my bathroom. I'm connecting it up to the central heating with chrome pipes and chrome compression fittings - the piping is all visible above floor due ...
3
votes
1answer
195 views

How to protect plumbing to an outbuilding from freezing?

I'm planning plumbing to an outbuilding. When I splice in to the water line, I'm thinking I should insert a shutoff valve with a weep hole ("stop and waste"). Then, if I leave for the winter, I can ...
1
vote
1answer
340 views

Low water pressure in house

My inside water pressure is very low. My outside pressure is good. I did disconnect an old water softener and just connected the input and output pipes from the softener together. I would like to ...
3
votes
2answers
3k views

How long should I let caulking dry before exposing to water?

I am redoing my bathroom and going from a tub with shower to just a shower base and walls. The walls are fiberglass and caulking is being used to seal everything up. How long should I let everything ...
2
votes
4answers
5k views

Could insulation around copper pipes cause condensation problems?

Should you insulate hot water pipe (copper) located in an attic? I live in Louisiana, where it rarely gets cold. The plumbers insulated the hot water pipe from the tankless water heater. Now ...
5
votes
4answers
836 views

How can I remove this old tub drain stopper?

My girlfriend recently moved into a house that was built in the early 1940s. Most of the house is in great condition, but, of course, there are a few items here and there that need fixing. The tub ...
3
votes
4answers
7k views

How do I unscrew a broken aerator?

My bathroom faucet was spewing water at odd angles. The aerator was obviously old and plagued with mineral deposits. So I attempted to remove the aerator to clean/replace it. With WD-40 and vice ...
2
votes
1answer
683 views

What would cause the bottom half of a radiator cool down after heating up?

I have a one pipe system and just had a new Vertex vertical radiator fitted. It's the last radiator in the circuit. The radiator I had replaced for the vertical radiator worked like a dream for the ...
2
votes
1answer
5k views

Showerhead with “backflow prevention”

I bought this Delta showerhead almost a year ago. I remember the packaging mentioning a "backflow prevention" feature. Every time I turn off the faucet water streams from the area I've circle below, ...
3
votes
1answer
530 views

How can I repair a sticking temperature gauge on heating valve?

The plumbing for my building heating system has temperature gauges on the outlet and inlet pipes. One of these gauges sticks - I can make it show the correct temperature by tapping the gauge quite ...
4
votes
1answer
905 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 ...