Return to the Plumbing Forum | Post a Follow-Up

toilet bubbling first when flushed

Posted by tc123 (My Page) on
Tue, Nov 29, 11 at 16:19

I just moved into a condo that is about 9 yrs old and noticed that one of the toilets when you flush it there are a few large air bubbles coming up from the toilet first as the water is entering the bowl from ther rim. Is this common or is there a problem ?

Follow-Up Postings:

RE: toilet bubbling first when flushed

I suspect problem. After the toilet's trap, there is nothing but air in the gravity-drop line to the street or tank. If you're getting bubbles upon flushing, that would indicate an obstruction that isn't allowing the water to pass in the volume/time it needs to pass normally. Compressed/displaced air is bubbling back.

Such things can go on indefinitely without a problem or they can create serious heartburn in short order. No way to tell how yours will go. Could be it will clear itself, although unlikely. 100% solution is to clear it out now. Alternative is to wait until more or total blockage occurs. Everyone has different ideas about what should be done -- act or wait.

RE: toilet bubbling first when flushed

It may just be the design of the bowl. While most bowls used for residential service have the bowl water inlets in a ring under the top lip, some also have a port at the base of the bowl on the front that directs a stream of water towards the trapway to start the flush. With that type of bowl as the water enters it pushes the in the port ahead and causes those bubbles just before the water reaches the bottom port.

RE: toilet bubbling first when flushed

Thank You for all your help.

RE: toilet bubbling first when flushed

I have the same thing with a Kohler toilet. As soon as you flush a large air bubble pops from the center of the toilet. It does not seem to affect anything and I have never had any problems....

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Plumbing Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here