Toilet gushing water between tank and bowl


Old 03-02-10, 06:56 PM
Thread Starter
Join Date: Mar 2010
Posts: 2
Received 0 Votes on 0 Posts
Unhappy Toilet gushing water between tank and bowl


I have a Gerber toilet and have used two (what seem to be appropriate and installed correctly) gaskets. Each gasket has produced the same results. I fill the tank enough to cover the bolts, no leaks. I fill the tank to cover the flush valve, no leaks. I flush that little bit of water, all is well. I fill the tank a few more inches, no leaks. Flush those few inches and gush water comes gushing out between base of tank and top of toilet. What am I doing wrong?
Sponsored Links
Old 03-17-10, 08:17 PM
SimmerDownNow's Avatar
Join Date: Jan 2008
Location: Boston, MA
Posts: 25
Received 0 Votes on 0 Posts
You've probably solved this by now, but I'll take a SWAG at it: Is it possible the weight of the additional water causes the tank to shift and therefore leak? Maybe the gasket doesn't fit all that well after all. I just bought a universal gasket for my toilet and it seemed to fit, but it dripped. I then replaced it with the exact match for the make/model (had to go to plumbing supply house) and it worked perfectly. Disclaimer: I'm not a plumber. Also, DO NOT OVERTIGHTEN THE BOLTS!
Old 04-15-10, 08:38 PM
Join Date: Sep 2006
Location: Connecticut
Posts: 251
Received 0 Votes on 0 Posts
Yeah and another 2 cents.... careful on the 2 piece toilets that the tank is being tightened straight down and not on an angle. You want to tighten it down until the ceramic on the tank bottom just touches the top of the bowl front and back. Then you should be good to go.
Old 04-19-11, 04:12 PM
Join Date: Apr 2011
Location: USA
Posts: 2
Received 0 Votes on 0 Posts
The problem is definitely the gasket

I am posting this response for all those who might have the same problem--water gushing out from between the tank and the bowl when there is a full or almost full flush. I had the same exact problem. The Gerber toilets require a gasket which is a little thicker. It should be 1 3/16 in thick. The universal replacement ones will not work. Check your local plumbing supply store (not Home Depot or Lowes) for a specific gasket for Gerber. If you can't find it, go to to order one. I am one happy camper after finally finding the solution for my toilet!
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title: