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

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5
votes
3answers
33k views

When should pipe dope vs thread tape be used?

For threaded plumbing connections, you typically use pipe dope or thread tape (aka teflon tape). Are there situations when one is preferred over another? Does the size of the pipe, type of pipe, part ...
1
vote
1answer
2k views

How can I attach an under-sink water filtration system to the water line?

I recently bought an under-the-sink drinking water filter, a model from GE, and I got stuck trying to hook it up to the cold water line. The package came with a simple plastic tee that had a 1/2 inch ...
1
vote
0answers
73 views

Can I run 2 well tanks from 1 well

I have a detached garage that is in between the well and the house. As it stands, the tank in the house is not sufficient for watering the lawn, and so I would like to get a bigger one anyhow. Since ...
0
votes
1answer
118 views

Hot water recirculation

I have installed a Grundfos UP pump with built-in timer, aquastat, and check valve. It does provide hot water at the tap sooner, but when the water is being used, such as during a shower, cold water ...
0
votes
0answers
39 views

Why would 2 different sprinkler zones cause pressure at the pump to drop to 0?

Why would 2 out of 3 sprinkler zones cause the pressure reading at the pump to drop to 0? This is a well irrigation system and it is separate from the home's well. The pump is a 3/4 HP, has a flow ...
0
votes
1answer
38 views

Fixing a sink with multiple problems

I am interested in fixing the sink below, which has at least two problems: (1) the hot water handle leaks when the tap is turned on, from somewhere in the circled region, (2) no water flows when the ...
0
votes
1answer
30 views

Change direction between trap and vent

By code, I have 8 feet distance from a 2 inches trap to vent. These 8 feet must be straight? Can I change direction sideways or horizontal (sloped) to vertical and then horizontal again?
0
votes
1answer
65 views

Where is the pressure vacuum breaker typically located in a lawn irrigation system?

Where is the pressure vacuum breaker (or other backflow device) typically installed in a lawn irrigation system? Does it matter, as long as it is before the first sprinkler head? Or does it have to be ...
0
votes
2answers
36 views

What problems could be caused by putting mains water in to the pipe from a shared water tank?

I'm having a boiler replaced and have chosen a combi boiler. One of the benefits is mains water pressure hot and cold water where previously I had low pressure coming from a tank. The boiler is in ...
0
votes
1answer
86 views

Does PEX tubing need to be secured to attic joists?

I am slowly replacing my pin-holed leaking galvanized plumbing, piece be piece with PEX and Sharkbite connectors. The old galvanized is secured, in many places by both clamps and u-nails. What is ...
0
votes
0answers
51 views

Does PEX Plumbing Need Risers?

I am slowly replacing my galvanized plumbing, piece by piece with PEX and Sharkbite connectors, and it got me thinking: do I need to keep the risers?
28
votes
4answers
44k views

Why does my dishwasher back up into the sink, but running the disposal allows it to drain?

When my dishwasher runs the kitchen sink backs up. I have a two tub sink and only the side nearest the dishwasher with the garbage disposer backs up. Running the disposal for a few seconds causes the ...
15
votes
3answers
2k views

Are “1/4 turn” water supply valves more reliable than “multi-turn” valves? Or vice-versa?

Aside from personal preference, is there any reason why I would want to buy a "1/4 turn" water supply valve instead of "multi-turn valves"? Is one technology/design clearly superior than the other in ...
0
votes
0answers
34 views

How do I repair a water heater plastic drip pan and what supplies do I need?

How do I repair a hot water heater plastic drip pan, and what supplies do I need? Suggestions on who to call for repair if I can't do it myself?
0
votes
1answer
88 views

How can I remove the stench from a p-trap?

In my shower room, there's a hole that's always filled with disgusting, slimy water. What I've tried I've sponged it out a few times to clean, but that didn't really help. I've poured ...
0
votes
0answers
86 views

Why does my outdoor tap have a diameter of 1-1/4“ inches, not the standard 1”?

The outdoor tap for the front yard of our house has an outer diameter of 1-1/4" inches, so it is useless for attaching a garden hose. A standard tap is more like 1" in diameter. My question is: Why? ...
0
votes
2answers
229 views

How should I prepare this compression fit copper tube for use again?

(Apologies in advance folks - I'm new to compression fit connections so I suspect this is an obvious question). I'm preparing to reconnect an old copper tube to my water supply line and refrigerator ...
3
votes
1answer
157 views

What is causing the last two heads in a sprinkler/irrigation system to have no water pressure?

Zone 2 of my irrigation system has 6 pop-up sprinkler heads but the last two do not pop up, nor is there any water coming from them at all. They are completely dry, even in the flex lines they are ...
0
votes
1answer
232 views

What specific fitting do I need to connect a 1/4“ copper refrigerator water tube to a 3/4” steel water line that's already in use?

I recently bought a new refrigerator (Samsung RF263BEAESR) and am trying to connect it to my house's water supply line (under the kitchen sink). The prior owner of the house ran a copper line from ...
0
votes
2answers
64 views

basement plumbing

I have a cottage that until recently was on piers. The plumbing lines are at the base of the cottage as there never was a basement. The cottage was built in 1905. They are in the home stretch of ...
0
votes
0answers
60 views

Can I run heat tape on my water pipe behind drywall without hardwiring?

In removing the ceiling tiles in renovating our basement, it came to my attention that the first 5 feet or so on water supply line has heat tape on it. While we've had no problems with it freezing ...
0
votes
1answer
55 views

Is a push-fit end cap a temporary or permanent solution?

I am about to cap my water copper pipe with a Sharkbite push fit end cap. Is it a permanent solution? Or will I have to go with a torch?
1
vote
1answer
110 views

How does water supply enter into a pedestal house in cold climates?

I do a fair amount of traveling through West Virginia and other Appalachian destinations and I have noticed a number of pedestal houses (that stand on concrete piers, wooden posts or a combination of ...
0
votes
2answers
94 views

Why can't I get hot water quickly at my vanity sink?

Whenever I turn on the hot water, it takes 3-4 min to get hot water at the vanity. It takes 1-2 min. for the shower. I have a gas heater. Can it be fixed or does it need to be replaced?
4
votes
7answers
11k 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 ...
0
votes
1answer
54 views

How do I remove this exterior Water Valve cap?

How do I remove this exterior water valve cap? Bonus points for a name! Update: I cleaned it a bit more: I attempted to pry it but, I haven't made much progress: I also noticed this bolt but I ...
1
vote
1answer
134 views

Can I repair this crack in my sprinkler backflow preventer?

I have a crack in one part of my sprinkler backflow preventer/vacuum breaker. It looks a lot like this: Can I re-seal this crack? Or do I have to buy a whole new assembly?
3
votes
2answers
625 views

How do I reroute my existing bathroom piping for a pedestal sink?

(Similar to this question here) I am renovating a bathroom, and I'd like to put a pedestal sink in, instead of a full sized vanity. The primary issue is I would have to move the drain pipe, it is a ...
1
vote
1answer
85 views

Can I swap the positions of the toilet and bath tub?

We do not like where the toilet and bath tub are now located in the master bathroom. Can I place the toilet where the bath tub drain is now, and install a new bath tub where the toilet currently is? ...
1
vote
1answer
42 views

Putty around a new kitchen sink drain

This may sound too simple, but I know nothing about it. My kitchen sink drain was replaced and a small amount of putty comes off around the diameter. I know that is normal but am I suppose to let that ...
1
vote
1answer
65 views

Who do I call, roofer or plumber?

Last fall, I noticed my first floor kitchen had a leak that dripped down through the lighting fixture. This happened during a pretty strong rainfall. There is a bathroom above it but it had not been ...
0
votes
1answer
39 views

2 parallel drain pipes

Just opened a hole in my old house to replace some plumbing. I can see where the main drain/sewer stack comes down from the bathroom, but in parallel there's another galvanized? 2"? pipe coming down ...
0
votes
0answers
31 views

trouble fixing kitchen faucet

I recently had to replace the faucet/sprayer unit on my kitchen sink. everything connected fine, but when we turned it on, the flow side was very weak and the spray side just drenched us, spraying ...
0
votes
0answers
28 views

How can I connect an ejector pump to a 3 1/2" clean out plug?

I'm installing a new bathroom in my basement. I have the pit in with the ejector pump ready, the problem is the end of the sewer main has a 3 1/2" clean out plug in it. There are no 3 1/2" fittings ...
1
vote
1answer
357 views

What is the maximum distance a trap can be installed from a shower drain?

I am installing a new shower in an upstairs attic. I am taking part of a downstairs closet for a chase wall to run the plumbing and electrical. The closet is 10' from where the shower drain will be ...
2
votes
3answers
14k views

how to unscrew faucet valve stem when it's stuck?

I'm trying to replace the valve stem of a 2-handle bathroom sink faucet. All the instructions I've found online say to unscrew the nut atop the valve stem. But my nut, when it turns, also turns the ...
6
votes
4answers
24k views

Can p-trap be installed higher than drain entry?

I have p-trap entry in drain at 16" above the floor. However, vanity that I got has lower drawer which has top at about the same height. There is also about 4" clearance behind drawer. I was told that ...
4
votes
2answers
478 views

Can using two hoses deliver more water?

I'm filling a pool, and looking to speed up the process. I have two hose bibs, and wonder if I'm really gaining anything (and how much) by using both? The house is supplied by a 3/4" line. This tees ...
0
votes
0answers
98 views

Why is my sewer drain line suddenly having frequent blockages?

One month ago I experienced bubbling in my downstairs toilet when someone was taking a shower upstairs. The toilet bubbling concerned me and I noticed a little water on the floor the next day, nothing ...
0
votes
0answers
141 views

How to properly repipe my entire pool plumbing system

I have a 1950s or 1960s pool in South Florida. It is a concrete block pool and uses entirely galvanized piping. I would like to repipe it using 2" PVC as I believe that's best. The pool currently has ...
1
vote
1answer
60 views

How can I get this pump casing off the motor?

I have a Monarch MJC-50 shallow well jet pump (1/2 hp) and I want to tear the pump portion down to clean, inspect, and rebuild as it isn't delivering the pressure it used to (and I have ruled out all ...
0
votes
0answers
66 views

How to control mosquito breeding in outdoor sump wells

What are proven ways to control mosquito breeding in outdoor sump wells? Any sort of screen presents a clogging problem. Each action of the pump may disturb any layer of cooking oil used, or dislodge ...
2
votes
1answer
81 views

Can I use this drain in wood subfloor?

I am installing a drain in an upper floor laundry and had limited choices for floor drains. I picked up this "general purpose" drain. The only other option was a shower drain. It will be located ...
1
vote
1answer
258 views

What are these two drains for?

I have an unfinished basement and do not have any experience with plumbing a bathroom. I assume the two pipes protruding from the floor are toilet (on the left) and either sink or shower (on the ...
0
votes
0answers
76 views

How to remove bathtub faucet cartridge?

I have a leaky bathtub faucet, how do I remove this kind of cartridge?
5
votes
8answers
1k views

How do I remove a brass pipe that has been jammed into a larger iron pipe?

I was replacing the sink this afternoon when I noticed that the p-trap would not reach the drain pipe. No biggie, right? I'll just buy some extensions from the local big box and be on my way. I ...
0
votes
3answers
107 views

removing old bolts from brick wall

I've got a rusty old downpipe on my external brick wall that needs replacing, however the bolts on the brackets don't seem to have useful heads. See photo: ...
0
votes
1answer
157 views

How can I create an air tight seal around pipes?

I live in an industrial loft. My downstairs neighbor is a factory. When they're running, fumes come up through my bathroom into my apartment. It's serious problem. The guy who lived here before me ...
1
vote
2answers
367 views

How can I connect this washing machine outlet to the drain?

I have been given a washing machine and I've plumbed in the inlet no problems The problem I have is that the outlet hose coming from the machine is not compatible with the drainage plumbing in the ...
3
votes
2answers
123 views

How do I cut 1968 cast iron rough sewage pipe?

I have a rough in bathroom that was done in 1968 for the homeowners to finish. Cast iron pipes for shower and toilet are about 4 in. out of floor. How do I go about cutting them to install a toilet ...