This question is regarding Watermill Pump WASP 50 - Spare Parts

Pump sensors.

After about 30 min of not using the shower the pump will only start running by turning the bar shower on and off to coax it to run. Any idea what problem could be. Once running it works fine for a short period after turning off shower controls.
Asked 6 years ago by Jon.
Probably could do with more info, however......

First check that the inlet filters are clean and clear.

Also the top of the shower head should be approximately 600mm below the bottom of the cold water tank when measured vertically, any less than this and you could have difficulty in the shower starting.


Answered 6 years ago by George Thomson

View Spares and Order Parts:

Do you need any additional help to find the correct spare part?

Please click the following link if you would like to see other answers or ask a question regarding the Watermill Pump WASP 50 - Spare Parts

If you've landed here and this question is not about your specific product, please take a look at these similar items on our Grundfos Shower Pumps Spares page. Alternatively, if you're looking for any other brands you should view our full range of Shower Spares.

If you do not want to proceed with a repair or you want to buy this item or similar, please consider one of our Replacement Grundfos Shower Pumps

For any other support request please get in touch.