Stop Flooding from under toilet

[MarkH]

Last Summer we had some unusually heavy rains which flooded (first time in 18 years) my basement. I had about a foot, which came up and went down fairly quickly. Some of the water came through the floor drain and some from under the toilet.
I can easily stop the water from the floor drain with a plug, but what can I do for the toilet? Someone told me that they would install a neoprene ring, instead of wax, and glue it to the toilet and the floor. Will this really work?

 

[Mr_David]

Probably not. Old wax on flange you will never get the glue to seal 100%.
Depending on how much of a gap you have between the flange and the bottom of the bowl, you can double up on wax seals. they also make a reinforced wax seal for wall hung toilets that have felt embedded in the wax.

 

[MarkH]

What would your thought be if it was a new installation?

 

[CT18]

Back water valve on basement sanitary piping.