Normally, shower pumps work on a simple principle. Water a low pressure, say from an overhead tank, is taken into a chamber and fed into a fast spinning impellor. The water is then released outward by centrifugal force and comes out at a high speed. A pump comes with one or two impellors, called 'single' or 'twin,' operated by electric motors. The power generated by the motor will be directly proportionate to the pressure outcome and flow rate. A twin impeller pump can simultaneously boost hot and cold feeds, while a single one will boost these one at a time. Sensitive to shower valve, they activate and shut down automatically.
Negative and Positive Head Shower Pumps
Shower Pumps can boost the water pressure and give a powerful showering experience. Here at our online shop, we have positive and negative head shower pumps. A positive head pump is fed by gravity and requires a distance of at least a metre between the bottom of the cold water cistern and the pump. The gravity feed will start the pump to push water to the shower. Pumps may use centrifugal or regenerative pumps. Regenerative pumps are cheaper and easier to install, while centrifugal pumps are more efficient. They also serve as a less noisy option so if you are seeking a silent option that these make a better choice.