Questions tagged [plumbing]

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

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OK to drain 2nd vanity sink like drawing? Will this meet code?

Hope you can take a look at the drawing and let me know if its ok to hook up the waste like this. The plan is to remove a section of gal at both locations in red and install a pvc sanitary tee and ...
Randy M's user avatar
  • 49
3 votes
0 answers
66 views

How can I resolve this plumbing venting issue?

Twice in the last 5 years ALL of my drains have stopped draining at once. Plunging, snaking, etc do nothing. Water bubbles with the pressure of a plunger then painfully slowly drains. I'm 99% sure ...
mike's user avatar
  • 31
3 votes
2 answers
235 views

Pressure spikes causing water heater TPR valve to drip/open

System is a AO Smith power vented 50 gallon gas water heater about 8 years old. 2 gallon Amtrol ST-5 expansion tank (charged to 65 psi) on cold water supply side was installed in December 2022 to ...
justin's user avatar
  • 39
3 votes
1 answer
128 views

Can I connect a vent pipe from a defunct waste drain to a different, active waste drain pipe instead?

My goal is to remove as much defunct plumbing as possible. My scenario is: Former sink in basement (removed), drains to septic under slab Current sink in kitchen, drains to septic through long pipes ...
jmvincent's user avatar
  • 113
3 votes
0 answers
129 views

Plumbing Piece(?) Identification From Stop Valve Removal

Posted a question here to help me debug low water pressure to my kitchen faucet. Link to post here: kitchen-faucet-low-water-pressure-cold-only Basically, there was low water pressure only on the ...
user153782's user avatar
3 votes
0 answers
326 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 ...
Joe Faber's user avatar
3 votes
1 answer
1k 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 ...
johnnyo8395's user avatar
3 votes
0 answers
2k 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 ...
Strabbi's user avatar
  • 131
3 votes
0 answers
7k 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
ryan higgins's user avatar
3 votes
0 answers
1k 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 ...
Topher's user avatar
  • 131
3 votes
2 answers
18k views

Connecting a sump pump to sewer

I'm attempting to install a new sump pump in my basement after having a few minor flooding incidents and addressing as much of the external causes as possible (gutters, etc). The pump is only used for ...
antiduh's user avatar
  • 376
3 votes
1 answer
10k 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 ...
Jake Hassings's user avatar
2 votes
0 answers
42 views

Why is new diverter faucet leaking?

Shower faucet leaks after replacement I replaced the faucet with diverter with a brand new one. For what it's worth, the pipe (stub) looks super corroded. I unscrewed the stub, cleaned it with some ...
Deedee's user avatar
  • 21
2 votes
0 answers
77 views

How do I remove this shower handle?

I'm hoping that somebody can help show me how to take apart the this shower leaky faucet (and matching bathroom sink faucets). I didn't find any set screws but I was able to twist off the cap (...
Chuck Yang's user avatar
2 votes
0 answers
207 views

Bathroom pipe persistent high-pitched tone after water is run elsewhere in the house

The pipes in the second floor bathroom often make a high-pitched tone after water is run elsewhere in the house. The sound continues indefinitely, with a consistent tone, even when the water stops ...
Rob Napier's user avatar
2 votes
1 answer
96 views

Rerouting a vent pipe

In the first picture below (please try to ignore my abuse of expanding foam) the black 3" schedule 40 pipe on the right is the main drain line for the second floor (toilets, showers, sinks). The ...
negacao's user avatar
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2 votes
0 answers
83 views

Sound/vibration from PRV

Back in September of 2020 I installed a whole house filter system (iSpring). The PRV did a little vibration/noise and I adjusted the pressure slightly and it stopped. Did some internet research and ...
Marcel D.'s user avatar
2 votes
0 answers
263 views

Will my vent siphon the bathtub P-trap?

We're modifying our bathroom by moving a shower and bathtub around, but we're having trouble working around the limitations of the space. For some background, we're in Florida and are governed by the ...
Kyle's user avatar
  • 21
2 votes
1 answer
161 views

Water pressure issue when 2 sources running

In our house, if 1 water source is being used it works. But if the horse buckets are being filled (outdoor spigot) all you get is air sound on any other fixture. Even if you try and use hot water (...
Jomama's user avatar
  • 21
2 votes
2 answers
275 views

Plumbing Basement Bathroom review

I'm plumbing a basement bathroom. Here's the basic layout: sink, toilet, shower. Will the pictured setup pass code? All vents are 1.5in. and will be taken to the wall. The 60° elbow on the shower will ...
Luan Oliveira's user avatar
2 votes
0 answers
53 views

Bad pitch on outside water lines

My plumbing system is copper. I have an outside shower (OS) that can be isolated by a pair of shutoff valves (SV) in my bathroom vanity cabinet. The lines from those SV to the OS travel horizontally ...
joeb's user avatar
  • 123
2 votes
0 answers
52 views

NSPC bathroom venting Diagram Correct?

I will start a description from the top of the page. The label there says vent and it goes up to the roof (2 stories). Right beside it is a 3" stack that is carrying the waste from a full ...
Mrordinary's user avatar
2 votes
0 answers
535 views

How can I remove a screw-less spindle tap when I can’t reach the bonnet nut?

I have a pair of spindle taps in the wall at my laundry sink. They have screwless tap handles, I.e. the handles are somehow compression fitted onto the spindle shafts, and don’t seem to be removable. ...
Nick Forge's user avatar
2 votes
0 answers
48 views

Will older (pre-2008) MAPP torches work with new (MAP/Pro) cylinders?

I recently inherited a pair of 70s/80s-era MAPP torches in good condition (both work with their current cylinders). I know that the formulation of what's sold in the USA as MAPP changed around 2008, ...
Mike C's user avatar
  • 21
2 votes
0 answers
50 views

check valve in hot water loop held open by salts or crytals

I have a pressurised (UK spelling) hot water loop which back-flows at night, cooling the tank and costing me money. Years ago I fitted a check valve to check the night-flow opposite to the circulation ...
coolnfroody's user avatar
2 votes
0 answers
114 views

Can I use a tank water heater as a tank?

It seems to me that insulated water storage tanks are much more expensive than tank water heaters. Are there reasons I shouldn't just use a tank water heater (element turned off) as a storage tank? ...
Matthew's user avatar
  • 9,837
2 votes
3 answers
590 views

how to move Vanity drain from side wall to the back

I am renovating a bathroom and the drain is coming from the side. This was done because the vent stack is on that side wall. The wall directly behind the vanity would be an outer wall. I am planning ...
Stephan John's user avatar
2 votes
0 answers
278 views

Plumbing drain detour around steel beam

During a remodel we removed a 1st floor load-bearing wall that included a drain stack serving our laundry room on the 2nd floor. A steel beam was added in the ceiling above the removed wall to handle ...
Travis's user avatar
  • 210
2 votes
1 answer
210 views

Venting to above bathroom sink and proper angles

Background - I have a Saniflo Sanicompact toilet in my basement which is self contained and doesn't need to be vented. There is a bathroom sink that drains into it. Saniflow folks said that the sink ...
junta's user avatar
  • 1,045
2 votes
0 answers
200 views

What type of Shower Valve Stem is this? I need to replace the handle

Ive tried every outlet i can to identify the type of stem i have in order to replace my shower handle. My plumbing supply told me its an American Standard but every American Standard handle i see does ...
Constantine's user avatar
2 votes
0 answers
416 views

Backflow prevention fixture on my sprinkler system has started leaking -- is teflon tape the appropriate fix?

The backflow valve on my irrigation system has developed a minor leak at the threads I am pointing to. It's outside and not super fast, so not super urgent, but I would like to get it fixed eventually....
Sidney's user avatar
  • 1,645
2 votes
0 answers
8k views

Can you run two toilets on the same horizontal soil/waste pipe?

I have a bathroom and toilet next door to eachother. Can I add a toilet in the bathroom using the soil pipe from the toilet next door? Current layout: Proposed layout: The existing soil pipe runs ...
Noobie3001's user avatar
2 votes
0 answers
153 views

PVC OK for underground water line

been going back and forth between PVC 40, PVC 80, HDPE and PEX-A for my 35' main water line from the meter to the house. Suffering from analysis paralysis and could use some input. Single story home ...
Travis's user avatar
  • 149
2 votes
0 answers
187 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 ...
user2138912's user avatar
2 votes
0 answers
135 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 ...
Brad's user avatar
  • 129
2 votes
0 answers
396 views

High pressure water comes out of sprinkler air blow out valve

When I turn the irrigation valve on (my the main water valve), high pressure water comes out of the air blow out valve outside. Does this mean that there is leak in the pipe somewhere? The sprinklers ...
user137469's user avatar
2 votes
0 answers
498 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 ...
dan's user avatar
  • 21
2 votes
0 answers
83 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. ...
StayOnTarget's user avatar
  • 5,495
2 votes
0 answers
106 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 ...
user130042's user avatar
2 votes
1 answer
2k 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-...
loclos's user avatar
  • 29
2 votes
0 answers
151 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 ...
anm767's user avatar
  • 197
2 votes
0 answers
158 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 ...
user480402's user avatar
2 votes
0 answers
204 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 ...
dabi's user avatar
  • 901
2 votes
0 answers
84 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 ...
MemoryWrangler's user avatar
2 votes
0 answers
77 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 ...
confusednerd's user avatar
2 votes
0 answers
76 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 ...
user116527's user avatar
2 votes
0 answers
325 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 ...
Shawn's user avatar
  • 121
2 votes
0 answers
821 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 ...
appwizcpl's user avatar
  • 171
2 votes
0 answers
347 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 ...
user113594's user avatar
2 votes
0 answers
88 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 ...
StayOnTarget's user avatar
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