My shower valve is pulsing?

If your shower valve is pulsing, please check the following - 

Check the non-return valves as they may need cleaning?
Please contact VADO Aftercare, who can support you on how to check and clean these valves. 

Is the water pressure from both hot and cold water supplies properly balanced?
If the cold water pressure is too high you will need to either fit a pump on the hot supply or a pressure reducing valve on the cold supply.

 
If you are fitting a pressure reducing valve, please ensure the total pressure does not fall below the recommended operating pressure for your product.