Hello there... I have a studio workshop with just a sink which has a cold water tap only from the mains supply. The pressure in the tap isn't great. I want to install an electric shower, taking a feed off the cold water mains near the tap. I'm worried that the pressure is going to be so bad that the shower pressure will be virtually non-existent. Is there any way of plumbing in a pump or something to boost the pressure of the shower from the cold water feed? Please help... I am incompetent!! Thanks, Matt.