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

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4
votes
7answers
10k views

How can I prevent or remedy “bio slime” accumulation in a sink drain?

The drain in the sink which we use for mouthwash consistently gets clogged by a very repugnant slime. I've tried all the common drain unclogging products (Drano, Liquid Plumber) as well as some ...
4
votes
2answers
11k 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
589 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
1answer
6k views

How does one know if a well pump is “Short Cycling” or pressure tank is water logged?

Is there any calculation that can be performed to estimate the amount of water a well water pressure tank should output between pump cycles? E.g.- I have a 40 gallon pressure tank (non bladder) with ...
4
votes
3answers
531 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
4answers
3k views

Why is my two month old dishwasher exuding a terrible smell?

In July I purchased a new Whirlpool Gold Series dishwasher model WDF750SAYW1. The machine has done a great job cleaning dishes, but in recently has begun to emit a terrible smell. The stench is not ...
4
votes
2answers
3k 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
1answer
316 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
709 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
2answers
856 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
1answer
520 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
833 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
3k 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
347 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
149 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
607 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
2k 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
2answers
101 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
votes
3answers
4k 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
1answer
3k 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
502 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
343 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
4answers
14k 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 ...
4
votes
2answers
520 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
3answers
1k 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
2answers
130 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
186 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
4answers
527 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
2answers
635 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
675 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
2answers
760 views

How can I replace this unusual kitchen sink drain pipe?

I'm trying to replace a broken 1-1/2 inch L-shaped brass pipe under my kitchen sink, as in this picture: At one end, it's connected to the sink drain, which if I'm understanding the terminology ...
4
votes
1answer
549 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. ...
4
votes
2answers
963 views

Do I need a vent on this emergency drain?

Code allows the use of a wet vent for the bathroom group which in my case is a sink, toilet, and shower drain. About 10-15 feet down stream of this group I have a washing machine drain with its own ...
4
votes
2answers
982 views

Should we install an overhead tank or cistern tank?

We are building our home (a 2-storey house) and a cistern tank was suggested by our architect for aesthetics. We asked around the neighborhood and one person has a cistern and an overhead tank but ...
4
votes
1answer
3k 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 ...
4
votes
1answer
744 views

Is there a shower drain pipe in this picture?

I'm certain the 3" pipe on the left is the toilet drain (it is about 12" form the wall and has a rounded cap on it). I'm guessing the shorter 2" capped pipe on the right, up against the wall, is the ...
4
votes
1answer
581 views

Should central heating pipes through internal brickwork have insulation?

My house has old (large diameter) steel central heating pipes. These travel through the basement before passing up through the house. My concern is that when they pass through internal walls they are ...
4
votes
3answers
3k 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
1answer
429 views

where can I buy a new trim for my bath plughole?

My bath plughole needs replacing. I don't need the whole unit for the overflow. The problem is that when I fill the bath, half the water has drained away within 15mins. I think the plug doesn't fit ...
4
votes
1answer
932 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
1answer
216 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
0answers
177 views

What would cause water to flow around the toilet flange where the concrete is? [closed]

My toilet was leaking around the bottom so I assumed that it needed a wax ring. However when I removed the toilet, after emptying the water, I noticed that water keeps coming up around the flange. ...
4
votes
2answers
271 views

Does polybutylene plumbing require lower pressure?

I've just purchased a new home (new to me; the house was built in 1994), and I've noticed that the water pressure is pretty low. Not low enough to be a serious impediment (it passed inspection), but ...
3
votes
3answers
190 views

What should I check for before turning on an OLD dish washer for the first time?

We recently purchased a house with a REALLY old dishwasher. The inspection report says that it "appears to be in working condition" but I'm paranoid of having a plumbing mess if we start using it. ...
3
votes
3answers
31k views

Why has my bathroom cold water tap (but no others) stopped working?

The basin cold water tap in my bathroom over the last week has gone from fully flowing, to half pressure, to a dribble, then to a drip and now nothing comes out. The 3 other taps in the bathroom work ...
3
votes
6answers
601 views

Frozen Pipe(s) — How to Respond?

I woke up this morning to find a trickle of water pressure to my cold bathroom taps, and no water pressure to my hot water bathroom taps. The water was fine in the rest of the house. Since we're in ...
3
votes
3answers
3k views

How do I fix a leak at a decommissioned saddle-valve?

Water is dripping, about a drop every other second, out of the end of this thing. what is it? why is it dripping? can I fix it myself?
3
votes
3answers
2k views

Can a tub and shower share the same drain?

Can a shower and tub share the same drain?
3
votes
3answers
736 views

Is there a way to get hot water without altering plumbing or electrical wiring too much?

Is there a way (other than collecting water and heating it on the stove ) to get hot/warm water from the tap without having to alter existing plumbing or electrical wiring ?
3
votes
4answers
438 views

What is the proper procedure for replacing rusted toilet anchor bolts?

I have a 1.6 gallon American Standard toilet that rocks a little from side to side. Upon closer examination, it looks like at least 1 (or both) of the anchor bolts are loose (they had corroded ...