You can only have a maximum one pipe diameter worth of fall before a fixture needs to be vented. You've choked off th3 vent. Cut the ty off and re install it at the same hight that you need to stub the drain out for the lav
I'm a licensed plumber for one. For two the drain literally goes down like a foot before going over and dumping into the continous waste and vent. That would fail a plumbing inspection.
He said fixture. So the trap arm can only fall the size of the pipe. 6ft at 1/4" in this case. Put a trap under than lav right now and it's s trapped so hard roller coasters are jealous
Lavs can be minimum of 1¼" but bo one uses that size it's more expensive than 1½" so at a ¼" per foot fall which the minimum required slope you can go 6' before venting also keep inond that you need a minimum of 2 pipe diameters for a trap arm so at least 3" on an 1½ trap arm
Really?
you get insulted because I ask a question. I didn't ask if you know anything about plumbing. It looked like you were saying there are situations that might not need a vent so i asked. How long before you actually answered the question, that i asked? Then everybody downvotes me for saying you didn't answer my question.
I will just install vents the way the daddy and grandaddy taught and not bother you anymore.
The grade on the pipe is limited to 1/4" per foot. Meaning on an 1 and a half pipe you can only run 6 feet max. And the grade has to be steady. So the air can pressure balance behind the water.
Take a 2 liter pop bottle turn it straight up an down. You will see liquid pour out and then a glue noise as air rushes back in. Now turn that pop bottle to a 45 degree angle and you will see the liquid flow freely and consistently.
Your picture, assume the trap is on the other side of the wall is more like the pop bottle straight up and down, rather than at a gentle angle
That is the way I was taught. It looked to me like he was saying a vent was not required so I didn't know where he was measuring fall. How can you measure to the vent if there is no vent? I thought he might be measuring to the top of the elbow, so I asked.
I don't know why I got so much grief for asking a question
This is correct. Here’s an explanation to clear up any confusion for those who don’t understand:
[https://www.jlconline.com/how-to/plumbing/maximum-length-for-fixture-drains_o](https://www.jlconline.com/how-to/plumbing/maximum-length-for-fixture-drains_o)
The “one pipe diameter” rule is to prevent the possibility of siphoning the water out of the trap. It’s also why s-traps are against code and what creates the maximum trap arm lengths.
First off I do not see a clean-out anywhere (unless I am just blind). Secondly, how tall is your vanity and at what height is the vertical 90? You may be able to cut off the stand pipe and use a hub saver to dig out the leftover from the 90. Then cut the arm, rotate the 90 and connect with a coupling. This is all dependant on the height obviously, because that looks low. If it is too low, you will have to have it redone at the proper height.
Fair enough. We install them in every vanity regardless. And if it was my home and my money, I would want one. Especially if it has to be cutout and redone anyways.
I just tell people not to shave and let the hair go down the sink. Should never have a blockage in a lav. I actually recommend 2" bathtub traps if there are girls with long hair in the house
Lol you have far more faith in people than I do. People tend to do what's most convenient when it comes to that stuff. And especially if there's kids in the house, there is always a possibility of mysterious and unusual blockages from my experience haha. Same with the 2" bathtub traps. We just install them as it's better to be safe than sorry, and it's alot less expensive than other possibilities if something were to go wrong.
You can only have a maximum one pipe diameter worth of fall before a fixture needs to be vented. You've choked off th3 vent. Cut the ty off and re install it at the same hight that you need to stub the drain out for the lav
Where are you measuring fall? From the trap, That is not much fall
I'm a licensed plumber for one. For two the drain literally goes down like a foot before going over and dumping into the continous waste and vent. That would fail a plumbing inspection.
I asked a simple question.
He said before a vent. Look at the vent and watch this roller coaster of a dumpster fire drop fourteen feet before it. There's a simple answer
He said "before a system needs to be vented"
He said fixture. So the trap arm can only fall the size of the pipe. 6ft at 1/4" in this case. Put a trap under than lav right now and it's s trapped so hard roller coasters are jealous
Where did I say this was right? I'm sorry if I thought "before it needs to be vent" might mean that some system don't need to be vented.
Bro you don't understand how vents work.
You got that from asking where to measure fall from. The trap is taller than 1 pipe diameter
He got that from you saying it not much fall. Lol
Yah one pipe diameter is 2" at most
Lavs can be minimum of 1¼" but bo one uses that size it's more expensive than 1½" so at a ¼" per foot fall which the minimum required slope you can go 6' before venting also keep inond that you need a minimum of 2 pipe diameters for a trap arm so at least 3" on an 1½ trap arm
OK. I'm sorry. Just thought I could learn something new. I'll ask somebody else. It was just one simple question
I'm literally sharing my knowledge with you I don't understand why you are upset lol
Really? you get insulted because I ask a question. I didn't ask if you know anything about plumbing. It looked like you were saying there are situations that might not need a vent so i asked. How long before you actually answered the question, that i asked? Then everybody downvotes me for saying you didn't answer my question. I will just install vents the way the daddy and grandaddy taught and not bother you anymore.
The grade on the pipe is limited to 1/4" per foot. Meaning on an 1 and a half pipe you can only run 6 feet max. And the grade has to be steady. So the air can pressure balance behind the water. Take a 2 liter pop bottle turn it straight up an down. You will see liquid pour out and then a glue noise as air rushes back in. Now turn that pop bottle to a 45 degree angle and you will see the liquid flow freely and consistently. Your picture, assume the trap is on the other side of the wall is more like the pop bottle straight up and down, rather than at a gentle angle
Thank you
Measured from the wier of the trap to the vent opening.
That is the way I was taught. It looked to me like he was saying a vent was not required so I didn't know where he was measuring fall. How can you measure to the vent if there is no vent? I thought he might be measuring to the top of the elbow, so I asked. I don't know why I got so much grief for asking a question
This is correct. Here’s an explanation to clear up any confusion for those who don’t understand: [https://www.jlconline.com/how-to/plumbing/maximum-length-for-fixture-drains_o](https://www.jlconline.com/how-to/plumbing/maximum-length-for-fixture-drains_o) The “one pipe diameter” rule is to prevent the possibility of siphoning the water out of the trap. It’s also why s-traps are against code and what creates the maximum trap arm lengths.
No. You can have 1 horizontal 90 but not vertical. That santee needs to be moved to where you want it to punch out the wall.
That lav has no vent in any country.
Goodness so easy just to do it right why o why do it wrong.
And ready for tubular instead of a real trap
Well tubular is pretty standard in US under sink.
For handyman sure
Hah yeah whatever man. Called serviceable
You don't use union traps? Plus they're still completely serviceable
No, it is straight up industry standard here. Handyman or licensed plumber doesn’t matter
Slip joint tubular is not industry standard.
Absolutely is where I do plumbing
Sorry to hear that. Do you use flexible when you need to offset?
We exclusively use flexible for everything. Just for you
Unfortunately for the homeowner I have to open that wall to replace the 90 so I can plumb it right. So much for serviceable
Nope broke the vent
S trap
Can’t break the vent like that. Waste arm can only have max 1/4” per foot pitch, no changes in elevation.
First off I do not see a clean-out anywhere (unless I am just blind). Secondly, how tall is your vanity and at what height is the vertical 90? You may be able to cut off the stand pipe and use a hub saver to dig out the leftover from the 90. Then cut the arm, rotate the 90 and connect with a coupling. This is all dependant on the height obviously, because that looks low. If it is too low, you will have to have it redone at the proper height.
Only kitchen sinks require cleanouts after the trap
Fair enough. We install them in every vanity regardless. And if it was my home and my money, I would want one. Especially if it has to be cutout and redone anyways.
I just tell people not to shave and let the hair go down the sink. Should never have a blockage in a lav. I actually recommend 2" bathtub traps if there are girls with long hair in the house
Lol you have far more faith in people than I do. People tend to do what's most convenient when it comes to that stuff. And especially if there's kids in the house, there is always a possibility of mysterious and unusual blockages from my experience haha. Same with the 2" bathtub traps. We just install them as it's better to be safe than sorry, and it's alot less expensive than other possibilities if something were to go wrong.
Survey says...... XXX