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View Full Version : What causes a toilet to loose its trap seal?


rram326
Dec 17, 2013, 04:06 PM
Flush closet, come back in 24hr. Period & water in bowl very low.

ma0641
Dec 17, 2013, 04:32 PM
Other then for a crack causing a leak, the only other reason is a clogged vent. In this case, water is actually sucked out from the bowl. If indeed the water drops extremely low, I would look into a crack.

ballengerb1
Dec 17, 2013, 08:17 PM
Agree, usually a vent issue but it can also happen if you have a very tight home and use an exhaust fan. Do you have more than one toilet?