I am about to install a new shower and need advice about pumps. I have a cold water storage tank in the loft - the bottom of it is about 70cms from the top of the shower head. My hot water cylinder is downstairs. The shower will be installed upstairs. I will be installing a mixer shower valve - possibly thermostatic. Please give advice about the best type of pump to use. I have also seen a new team shower with an integrated pump. Has anyone had experience of these?