Would like to move it to the ground floor to increase the size of the bathroom so that it will take a separate shower cubicle. Currently there is an electric shower over the bath. The house has ground and first floor, no other bathrooms, just a ground floor loo. The boiler is an Ideal Classic. Can I move the tank? How will it affect the water pressure in the bathroom, I presume it will? So what will I need to do to compensate for this or increase the pressure?