Hi, ive got to install a new mixer shower and pump but i dont normally get too involved in this kind of work so need a bit of advice...... going to fit the pump in a/c but the shower will be a good 25m run away, (with pipework runnig through the loft) what pump would be best for the long run and what size pipework would be best to use, the shower will be a bar type thermo mixer. any advice would be great. cheers