It's all about specifics, what you need to do is measure the flow from the shower head over a minute and see how much you get. If it's less than around 1L/min then you need a negative/universal pump.
You also need to decide how it is to be used, just for the shower or for the whole bathroom or for the house. Are you using it for both hot and cold (advised) supplies as a mixer shower needs a balanced supply.
Stuart Turner is my pump manufacturer of choice.
You also need to decide how it is to be used, just for the shower or for the whole bathroom or for the house. Are you using it for both hot and cold (advised) supplies as a mixer shower needs a balanced supply.
Stuart Turner is my pump manufacturer of choice.
