Constaint sound from bathtub drain

Dec 6th, 2020 8:40 pm

#1

sunmagic [OP]: Jr. Member; Sep 26, 2016; 138 posts; 127 upvotes; Longueuil, QC

Dec 6th, 2020 8:40 pm

Today, I noticed that there is a constant sound from my bathtube drain pipe, it sounds like there is wind going in the pipe. I include the youtube link of the recording. My phone could not capture the sound clearer, please turn up your volume a bit to hear it

Iam worry that this is a symptom of bigger issue
Thanks in advance for all the helps

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Dec 6th, 2020 8:49 pm

#2

TTony: Deal Addict; Dec 18, 2004; 1108 posts; 144 upvotes; Mississauga

Dec 6th, 2020 8:49 pm

Test after water

CoNtRaCtOr

+1

Dec 6th, 2020 8:54 pm

#3

sunmagic [OP]: Jr. Member; Sep 26, 2016; 138 posts; 127 upvotes; Longueuil, QC

Dec 6th, 2020 8:54 pm

TTony wrote: ↑ Test after water

Thanks, I just water it, the sound is gone now, not sure if it would come back. I do not use this bathtub beside once a week for house cleaning purpose. Do you have a clue what is causing it?

Dec 6th, 2020 8:55 pm

#4

SubjectivelyObjective: Deal Addict; Jun 26, 2019; 1890 posts; 1619 upvotes; GTA

Dec 6th, 2020 8:55 pm

If the trap goes dry you'll hear a lot of things....and possibly smell others...

+2

Dec 6th, 2020 9:04 pm

#5

sunmagic [OP]: Jr. Member; Sep 26, 2016; 138 posts; 127 upvotes; Longueuil, QC

Dec 6th, 2020 9:04 pm

SubjectivelyObjective wrote: ↑ If the trap goes dry you'll hear a lot of things....and possibly smell others...

Thanks man, so I guess there is no real issue here, but I wonder what is the physic behind this, I can understand the smell part if the pipe is dry, but not the sound part though.

Dec 6th, 2020 9:14 pm

#6

TTony: Deal Addict; Dec 18, 2004; 1108 posts; 144 upvotes; Mississauga

Dec 6th, 2020 9:14 pm

sunmagic wrote: ↑ Thanks man, so I guess there is no real issue here, but I wonder what is the physic behind this, I can understand the smell part if the pipe is dry, but not the sound part though.

Search how trap works

CoNtRaCtOr

+1

Dec 7th, 2020 9:49 am

#7

Cowboy905: Sr. Member; Dec 26, 2012; 510 posts; 392 upvotes; Hamilton

Dec 7th, 2020 9:49 am

if you only use it once a week, it's possible the trap is drying out. a week doesn't seem like a long time though, hopefully you have a trap under it. My old townhouse didn't have a trap in the powder room sink. I guess someone did a DIY vanity install, we noticed it the second we opened the cabinet and saw a straight pipe down. it was one of the first things we fixed.

+1

Dec 7th, 2020 2:39 pm

#8

pootza: Deal Addict; Dec 19, 2009; 4716 posts; 2643 upvotes

Dec 7th, 2020 2:39 pm

sunmagic wrote: ↑ Thanks man, so I guess there is no real issue here, but I wonder what is the physic behind this, I can understand the smell part if the pipe is dry, but not the sound part though.

If your trap is dry you should be able to hear things going on outside from the vent on your roof as well as water running into the main municipal sewer as all the pipes should have no water in them.

+1

Dec 7th, 2020 2:47 pm

#9

LucifersGhost: Member; Jun 28, 2015; 251 posts; 76 upvotes; Toronto, ON

Dec 7th, 2020 2:47 pm

Too many logical people here.

I say ghosts and burn down the house

+3

Dec 7th, 2020 3:18 pm

#10

otaknap: Deal Addict; Feb 26, 2016; 1375 posts; 441 upvotes; Vaughan

Dec 7th, 2020 3:18 pm

All pipes are vented outside most likely through the roof. I didn't learn this until a couple of years ago but If it's a closed system, water wouldn't drain because of the pressure. It make sense when you think of it logically. Like others have mentioned, you're likely just hearing noise from outside resulting from a dried out trap.

+2

Dec 7th, 2020 3:26 pm

#11

adamr88: Newbie; Feb 26, 2020; 1 posts

Dec 7th, 2020 3:26 pm

Did you try running the faucet and seeing if that helped the trap?

Dec 7th, 2020 5:45 pm

#12

jm1: Deal Addict; Jan 5, 2003; 4681 posts; 4392 upvotes; Toronto

Dec 7th, 2020 5:45 pm

In addition to traps drying out if not used frequently, an improperly designed drain system could actually cause traps to be siphoned out.

Any plumbing or renovations done by non-tradespeople (ie. not knowledgeable about plumbing codes)?

+2

Dec 8th, 2020 12:36 pm

#13

jacquesstrap: Deal Addict; Nov 9, 2008; 1851 posts; 871 upvotes; Toronto

Dec 8th, 2020 12:36 pm

If your trap is drying out in a week that seems like a problem.

I'm assuming that sound is air being pulled down through the tub drain pipe, which tells me you have vent problems in your system somewhere, because that should absolutely not be happening. Logical place to check would be your main stack and see if you have any blockages there.

+1

Dec 8th, 2020 1:05 pm

#14

DoorCrasher: Deal Fanatic; Nov 21, 2013; 7500 posts; 8016 upvotes

Dec 8th, 2020 1:05 pm

It is a trap issue, obviously. What I don't get is how the trap dries out within a week.... We have a subi that we barely use, less than once a month ans it never dried out. A leak in the trap may cause this issue

+1

Dec 8th, 2020 4:05 pm

#15

torontotim: Deal Addict; Nov 17, 2012; 4196 posts; 3411 upvotes; Toronto

Dec 8th, 2020 4:05 pm

DoorCrasher wrote: ↑ It is a trap issue, obviously. What I don't get is how the trap dries out within a week.... We have a subi that we barely use, less than once a month ans it never dried out. A leak in the trap may cause this issue

It gets siphoned out because of an improperly vented drain. Someone did some DIY plumbing. If it can be found, an AAV on the fixture in question might solve the problem.

+1

Dec 8th, 2020 9:07 pm

#16

georvu: Deal Fanatic; Feb 4, 2015; 7919 posts; 4047 upvotes; Canada, Eh!!

Dec 8th, 2020 9:07 pm

Did you recently add a washer to your house or other plumbing change?

2022: BOC raised 2 times and MCAP raised its prime next day.
2017 to 2018: BOC raised rates 5 times and MCAP raised its prime next day each time.
2020: BOC dropped rates 3 times and MCAP waited to drop its prime to include all 3 drops.

+1

Dec 9th, 2020 8:41 pm

#17

sunmagic [OP]: Jr. Member; Sep 26, 2016; 138 posts; 127 upvotes; Longueuil, QC

Dec 9th, 2020 8:41 pm

georvu wrote: ↑ Did you recently add a washer to your house or other plumbing change?

No, I did not have any plumbing change. However, after turn the water on a few minutes, the sound is gone, everything seems fine now
Also, Thanks for everyone's advices, if this happen again, I will check them over

+1

Dec 10th, 2020 9:12 am

#18

DoorCrasher: Deal Fanatic; Nov 21, 2013; 7500 posts; 8016 upvotes

Dec 10th, 2020 9:12 am

sunmagic wrote: ↑ No, I did not have any plumbing change. However, after turn the water on a few minutes, the sound is gone, everything seems fine now
Also, Thanks for everyone's advices, if this happen again, I will check them over

the sound is gone because you filled the trap with water. Issue will come back once trap is siphoned and empty