Question

Why is it vital to check the specification of a concealed trap toilet on a retrofit job?

The front-to-back length of the bowl could be different.
The bowl height could be different.
You must confirm if the bowl is an elongated or round-front style.
The footprint/skirt of the toilet may interfere with the existing water supply.
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Answers

GPT-4o mini
All of the above answers are correct.

When retrofitting a concealed trap toilet, it is essential to check various specifications including the front-to-back length, bowl height, style (elongated or round-front), and the footprint or skirt of the toilet. Each of these factors can affect the installation and ensure proper fit and function, as well as compatibility with existing plumbing and water supply connections.