Q: We’re replacing our existing two-piece toilet and have two questions. First, besides the obvious number of components, what is the difference between a one-piece vs. a two-piece toilet? Second, can you easily replace an existing two-piece toilet with a one-piece toilet?
A: Yes, in most cases you can install a one-piece toilet to replace a two-piece toilet without it turning into a big project. Just make sure you use the same specification as your existing toilet as far as rough-in measurements and bowl size.
Now for the question about one-piece toilets vs. two-piece toilets.
Besides components, the basic differences are:
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▪ Price. If you’re comparing apples to apples, the one-piece toilets usually cost more money.
▪ Installation. If you’re working alone, a two-piece toilet may be easier to lift and move, since you are dealing with two smaller components in place of one larger component.
▪ Cleaning. Because there is no gap between tank and bowl, maintaining and cleaning a one-piece toilet can be a little easier.
▪ Bottom line: It’s basically a draw. It usually gets down to personal preferences in this head-to-head competition.