I am planning the installation of a pumped shower system. I had intended to site the pump in the cupboard with the hot water cylinder, but there is not sufficient space. I will install an Essex flange for the hot feed from the cylinder and similar connection directly from the cold tank in the attic. But in view of my space restrictions there needs to be a pipe run of around 5 metres to the pump. I will use 22mm pipe but is this too long? Most instructions argue for a 'short run' or as 'close as possible' - any experience or insight - thanks
