The primary difference is where the water supply pipe connects to the cistern. A back inlet (or rear entry) hides the connection inside the cistern for a seamless, sleek look. A bottom inlet (or bottom entry) connects underneath or to the side of the pan with an exposed, visible hose and tap.
This flexible or copper piping comes from one of two places:
- a bottom inlet is under the cistern, and will have exposed plumbing – you’ll know you have this if you see a tap of some description
We have four styles of back-to-wall toilet:
click to view
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https://thetapshop.com.au/products/lawson-short-btw-toilet?variant=52098370863335
- https://thetapshop.com.au/products/aura-rimless-back-to-wall-toilet-copy?variant=52098368372967
https://thetapshop.com.au/products/aura-rimless-back-to-wall-toilet?variant=52098367357159
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- a back inlet comes from the rear of the cistern and will be concealed, which is neater design-wise and requires less cleaning, but it’s recommended you hire a plumber for a back inlet install.
There are three pan types, namely S-trap, P-trap and skew trap.