I recently purchased this shower kit: http://soak.com/300mm-square-stainless-steel-head-handheld-&-four-body-jets--thermostatic-mixer-shower-kit_p31112937.htm. It has three outputs: overhead shower head, hand-held shower head, and side jets. There are then three controls: two one-way control, and one two-way controls.
I recently paid a plumber to install this in my bathroom, and I have just returned to find that things are not as I would have expected. One of the one-way controls is for temperature, as expected. However, the other one-way control is for the hand-held shower, and the two-way control is for changing between the overhead shower and the side jets. This means that I cannot use the overhead shower and the side jets simultaneousy....but I thought that was the whole point!
What I had expected, is that the one-way valve would be used to control the side jets, and then the two-way valve would be used to decide between the overhead or the hand-held shower. This is the set up I have seen everywhere else, to my memory.
So, my question is, can I accuse my plumber of installing the shower incorrectly? Or has he actually done a standard job with a standard configuration, and it would have been up to me to brief him beforehand as to which way I wanted it configured? Unfortunately, he has taken away the instructions, so I cannot see what the original instructions said.