The space behind bidets can be a little tight, and the correct choice of trap can make the installation much more straightforward. We have found, two traps that work really well. Both are made by McAlpine, and the first is an E10, which is a small compact bottle trap. The other is a P10, which is a shallow P trap. This is the better option if you really are limited for space, as it is a little more flexible. The codes give are McAlpine codes, and most plumbing merchants will be able to help with these.
