Questions tagged [plumbing]

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

917 questions with no upvoted or accepted answers
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Can we install an aeration unit in an older septic system?

Our home was built in 1957. We have had problems for years with having a wet drain field and keep having our septic pumped. Today (of course my husband is away), I have done a couple of loads of ...
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49 views

Why does the funnel on my boiler clog and leak?

I apologize if I don't use the right terminology, please correct me. I have this boiler system called Grohe Red. Here is the manual. The problem I have is that every now and then the "funnel"...
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278 views

How to add a washing machine drain to an existing cleanout in basement

I have the current setup in the basement, as shown in the photos below. I would like to see if any wisdom can be shared here to add a proper drain for the washer, i.e., a 18" standpipe with a p-...
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39 views

Identifying Vent in Unfinished Basement & General Bathroom Layout

I am looking to finish my basement and wanted to get validation on my vent tie-in locations. I believe I have correctly identified it in the photo (top right of photo). I believe the builders have it ...
3
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1answer
178 views

Does my new bathroom plumbing need a cleanout?

I am working on new plumbing for an addition we just built. Does anyone see any issues? Do I need a clean-out at the end of the run? I plan on using a 3" elbow in lieu of a combo to keep ...
3
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64 views

Would this be a proper way to run drain line for basement sink?

On the other side of my mechanical room's wall, we are putting in a small powder room. The sink is going to be on the wall below the boiler valves, which is represented by my awesome graphic. I was ...
3
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1answer
2k views

Toilet makes high pitch whine after flushing, but only in the middle of the night

Sometimes, when my toilet is flushed in the middle of the night, it will make a high pitched whining noise for several (5-10 seconds) while refilling. This doesn't happen during the day, and it only ...
3
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0answers
718 views

Need to unstick stuck shower divider valve

The shower divider value (which chooses between letting water flow into the tub or up into the shower) is stuck. I can't spin it with the installed plastic handle. Here's some pictures: With the ...
2
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0answers
57 views

Septic alarm went off. Pump running. Unknown valve in closed position. Is there DIY fix or tank needs to be drained?

Recently bought a home with septic system and alarm went off. I silenced it: It seems it has been in continuous mode for at least last few months. First question - Is this the expected mode or should ...
2
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0answers
104 views

Can I bring this drain system up to code?

I'm redoing a bathroom upstairs and a living space directly below it. I'd love to replace the cast iron & galvanized steel drain pipes with PVC while I'm here (also plan to replace the water lines ...
2
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0answers
53 views

Plumbing through wall that rests on joist

My new construction home had the option of adding a 3rd floor bathroom that I declined at the time, but now would like to pursue. Luckily, the builder already ran plumbing and electrical in the area ...
2
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0answers
68 views

What's the term for a rotatable plumbing pipe "union" in the UK?

I've been searching for a specific plumbing fitting for UK BSPP threaded pipes / devices but I don't know what to call it. I'm not looking for a specific product recommendation, just the terminology. ...
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0answers
31 views

Chemical Injection Valve for Static Inline Mix Chamber

I have well water. The water is acidic and needs Sodium Hydroxide (NaOH) solution added to adjust the pH. The system has a Pulsa Feeder static inline mixing chamber, part no STM100-PVC. The NaOH is ...
2
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1answer
858 views

Kitchen sink drain pipe leaking inside the wall

I'm remodeling my kitchen and installed the new sink this week but noticed that any time the water runs, water emerges from inside the wall, near the drain pipe and as a result, the fiberglass ...
2
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1answer
249 views

Why does the plumbing for my whole house filter produce a buzzing/humming sound?

Yesterday, We installed the AquaSana Whole house water filter system by a licensed plumber. After install, We are hearing buzzing/humming sound near the main water line pipes. (Red arrow pointing to ...
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0answers
41 views

Toilet S pan connector to waste pipe

I've looked at a few videos about installing a new toilet and I've seen this types of connections: Toilet either inserts and bolts to a base like this: Or the S pan is inserted into another tube like ...
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0answers
84 views

What is the right way to plumb bathroom drainage across small joists?

Finished the demo part of the bathroom remodel to find pretty significant damage to the floor joists caused by the original builder's "design" (see photos/video). Setting aside how I'm going ...
2
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0answers
1k views

Can I mix galvanized and black (iron) pipe when plumbing for new gas service?

I'm getting new gas service (Nat. Gas, M425, 1-1/4") installed. Big Box Store doesn't sell 1-1/4" black pipe (only 1"), but they do sell 1-1/4" galvanized. Can I run galvanized for ...
2
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0answers
81 views

Can tankless water heaters be mounted to the underside of joists in a crawlspace?

My single-story 1100 sqft home (1 bathroom + laundry + kitchen) currently has a gas 40gal tank water heater. We're looking to renovate and remove the tank water heater. It would be replaced with ...
2
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0answers
55 views

How should this sink be vented?

We are remodeling our kitchen and moving the sink from against a wall to a peninsula. You can see below what the plumber put in. The new sink drain is lower left (in blue). The drain eventually ...
2
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0answers
67 views

Can someone help me identify this fixture?

I am trying to find out what fixtures to purchase for this valve ? I found some numbers on these, but even googling them the entire day did not result in anything fruitful. Hoping if someone knows ...
2
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0answers
59 views

Why are my water heater's hot and cold connections oriented opposite convention?

I installed a 30 gallon Rheem water heater at one of my apartments. When I started to install the water lines, I noticed the right side indicated it was the hot side. The HOT word was stamped in the ...
2
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0answers
194 views

Shower drain line with many curves?

I want to replace a tub with a shower, and the location where I'd like to put the drain has a 2" drain pipe (for the clothes washing machine) that runs very close to where I want to put the drain. So ...
2
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0answers
281 views

How to connect bathtub drain pipe to existing floor drain?

I have this floor drain and I want to connect it to a bathtub drain so basically another pipe. The diameter is about 40mm of the narrower pipe, although it has a thick border. It is most likely a ...
2
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0answers
173 views

Water softener standpipe question

I have a 1 1/2 inch standpipe coming off of a 2 inch drain pipe in my basement. The only thing before the stand pipe is the kitchen sink. And after the standpipe is a pipe coming down from the washing ...
2
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0answers
66 views

Do push-to-connect (Sharkbite) couplings allow for any thermal expansion?

I was reading the installation instructions for hot water (hydronic) baseboard heating sections. It says to consider using a special coupling between long sections of baseboard to allow for thermal ...
2
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0answers
40 views

Both hot and cold tub knobs leaking behind the wall

Okay, so I may have solved this problem but I want to know if my solution even made sense. We recently bought a house and soon realized (due to the ceiling being soaked downstairs) that our upstairs ...
2
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0answers
54 views

Automated Winterization of Interior Pipes

Thinking of trying to automate the winterization of a vacation home - anything to reduce the friction of getting in an out in the winter. Current process involves a bunch of work in the basement (...
2
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0answers
87 views

Would a "Quiet Check Valve" help when check valve is only on backup sump pump pipe?

Whenever it rains our sump pump sounds like a jack hammer when it shuts off. I had always assumed it was just the sump pump itself that was noisy, but as I did some searching this morning I came ...
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0answers
40 views

Plumbing drain to connect to main sewer outlet

I'm in the process of adding an outdoor toilet and sink to the rear of my house and would like to connect the drain to the main sewer line at the back of the house. Below is a photo of the existing ...
2
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0answers
272 views

Why is my shower drain blocked for several minutes before draining?

Every day when I have a shower, the drain starts out plugged. The water from my shower will slowly fill the tub. After about a minute or 2 the drain will unblock itself and the water will all drain ...
2
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0answers
569 views

Why momentary chemical smell after Tankless Hot Water Heater install

Why is my hot water stinky for a few seconds? This is a strong but hard to describe chemical smell like CPVC glue, not rotten eggs and not sewage or gas. I put in a new propane-fired tankless water ...
2
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0answers
221 views

Are water lines required to be secured to the wall at the point of exit?

There are several water supply lines made of CPVC that do not appear to be secured behind the wall at the point of exit (to supply water to a fixture). Are there any building codes regarding securing ...
2
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0answers
289 views

How to adjust tub water level with standing waste stopper?

I have an old tub with a standing waste stopper. When the drain is closed, if the water level gets too high, it automatically drains down to a fixed level. That level was 3/4 of the tub depth, until ...
2
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0answers
1k views

Are bends allowed in a toilet drain above the 4x3 reducer?

I am finishing my basement, which was roughed in by the builder, but I need to move the toilet, since I lost 8" of wall framing in front of the main sewer line, the vanity would be stupidly narrow, to ...
2
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0answers
47 views

Corrosion due to dissimilar metals or bad ground?

I'm a 1st time home owner but experienced DIYer here. Unfortunately I have little plumbing experience. I installed a hot water recirc. pump at my hot water heater about a month ago. I did not notice ...
2
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0answers
68 views

Water pressure booster

I need to get a water preasssure booster for my two story home and would like to know what should I look for. I know a specific brand can't be named, so I'm looking in specifications I should look for ...
2
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0answers
882 views

Why do I have low hot water pressure in showers only?

I have 2 showers in my house. Suddenly the hot water pressure dropped in both. The cold is fine and we haven't noticed any change in the faucets in the house. What could make my hot water pressure ...
2
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0answers
482 views

PP 1 1/2" tubular f409 doesn't fit 1 1/2" WYE nor 1 1/4" WYE

Beginner with Plumbing here. I'm installing a dishwasher and I believe I'm working with a non-standard drain pipe (between two sinks) where I would like to connect a WYE fitting (to connect the ...
2
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0answers
3k views

New bathroom double vanity. One sink runs the other backs up and drains slow

So when I run either sink for a minute the other fills and they both drain slow. Is it the trap height and/or a clog in the old line or something else. Noob here n looking for help. Thanks
2
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1answer
2k views

Irrigation backflow preventer spigot location question.

I'm not sure if this is the right category to post this so here goes. Long story short I am getting ready to install my backflow preventer, Zurn 34-720A Wilkins Pressure Vacuum, on my DIY irrigation ...
2
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0answers
8k views

What is this black/brown chunky sludge in my sink?

I woke up this morning to a foul-smelling, black/brown gunk that had appeared in my bathroom sink overnight or the previous day. It doesn't look like a slimy mold like many questions seem to be, ...
2
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0answers
240 views

Is a 4" double wye on a toilet drain legit?

I'm moving a basement bathtub drain and would like to tap into existing lines to accommodate a 2" upstairs laundry drain and prepare for another potential drain to accommodate an outside entrance ...
2
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0answers
561 views

Oxygen permeability of PVC pipe

PVC or CPVC pipe can be used for domestic water supply. PEX is typically supplanting this role but PVC is still suitable. However, PVC seems to not be used in hydronic applications although CPVC can ...
2
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0answers
1k views

New kitchen sink - not draining properly - could it be the way plumber connected pipes?

A plumber just installed my kitchen sink, however, it is not draining properly - it will overflow after just a few seconds. Im thinking there isnt enough pressure forcing the water down due to the ...
2
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0answers
1k views

New septic tank + smell in house

We have recently had a new septic tank put in our house (about 3 months ago). 1 month after the works were complete, there started to be an overwhelming septic tank smell in the house. There is only ...
2
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0answers
68 views

Running Water through Air Injection Softener with no power

Im in no way a plumber so forgive me if this is a silly question. I am on a well water system with an air injection softener. Last night, the circuit breaker its on shorted out. Im really at a loss ...
2
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0answers
70 views

Can I keep my outbuilding's 10a classificaton

This question is specific to Victoria, Australia. I have an old (1945) 6m by 7m outbuilding (basically, a small barn) on my property, and I would like to run mains electricity and water down to it so ...
2
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0answers
58 views

Spacing of underground pipes with differing freezing points

I need to run a variety of electrical and plumbing from my house several hundred feet to the site of my future pool and pool shed. Included in this is geothermal piping, connecting my house geothermal ...
2
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2answers
645 views

Venting Plumbing AFTER drywall is up

First, some set up: My friends and I have been building a sort of Mancave over the last year. It's about 300 square feet, with a height of about 14 feet -- half of the place has a loft (making ...

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