Originally Posted by Christian and Beccy
We have a Valliant Combi Boiler and I was wondering whether if I Tee off the 22mm Hot and Cold Pipes with 15mm Pipes for a Thermostatic Shower, then I take a 15mm Tee off the Cold Shower Pipe, would flushing the Toilet have any greater effect on the Shower than it would if we took the Toilet feed earlier on?
Also, what type of Shower should I be looking at? I want something that has very good performance (the Boiler does 16 Litres DHW) and is Modern looking, like the Hudson Reed stuff.

that should be fine, fitted a bathroom with very similar arrangement this week with no problems
shower wise u need a combi specific or high pressure type i used a "trevi compact" on this one and worked no problem on the combi