being in a new ish house they have done the usual thing of tanked hot water and an electric shower. this time of year the shower is pretty chilly due to the mains water temp and header tank temp. I'd like to keep the electric option but want to try a standard tank fed shower. so it doesn't look too odd I think a fixed rain shower head in the ceiling with a valve tucked away somewhere. one thing I am wary of is tank head pressure not being up to the job but I don't particularly want to install a pumped solution yet. can anyone think of an easy way to test it and indeed up the pressure if required. its piped in plastic for the most part so easy enough to patch into. the tank cupboard is next to the bathroom.