Toilet Trapway size ?

Aug 05, 2008 6 Replies

I have a kohler toilet and I often have to plunge it, at least once a week. It seems to plug easily without any abnormal use.


I am looking at getting a new toilet and notice that trapway sizes are often listed.



Will a larger trapway prevent a toilet from clogging? I see that toto toilets that I am looking at have a 2 1/8 " trapway. another toilet that I am looking at lists the trapway being 1 3/4 " minimum


There are a number of factors and trap size is important. However sometimes too big is bad as it can mean less force from the water. Generally larger is better however.

Also important is a "fully glazed" trap. That is always a good thing.

Even after all that there are a number of little changes in size and shape of the bowl size of valve etc all together make for serious differences in performance.

good way to get something down your plumbing you don't want down your plumbing..... (like toys)

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4019$ snipped-for-privacy@news.aliant.net...

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unless you drop BIG HARD ONES:(

Check out the American Standard Champion. I saw a demo on Modern Marvels Bathroom Tech and nothing got stuck in it.

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" snipped-for-privacy@aol.com" wrote in news: snipped-for-privacy@k13g2000hse.googlegroups.com:

Can start naming those logs like The General Sherman and General Grant.

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