Warwick XL water pump

Hi, 
The water pump in my 2017 Warwick XL does not stop running when I switch the faucet off. I have had this problem several times and calibrated it. I know it is sensitive to volt changes. But very tired of it and now thinking of changing pump and pressure switch. The whale pump I already removed when installing a new bigger freshwater tank. But I am wondering what part I need to change to not have this problem any more. Is it the pump in the fresh water tank plus the pressure switch under the bench that needs to be changed. What does the part of the pump with the frost control button the one that empties the pump in case of colder temperatures do ,the one that is also located under the bench. Do I need to change that part too. Also anyone has any tips on what kind of pump I should get? 
Thank you so much

You'll still need the dump valve. If you switch to a Shurflo pump then you won't need the pressure switch. The submersible pump can be left in the tank unless you really want to remove it.

Thank you! So I can just keep the dump valve? And then get a Shurflo pump. Where does one install the Shurflo pump

gobsmacked wrote:Thank you! So I can just keep the dump valve? And then get a Shurflo pump. Where does one install the Shurflo pump

Mines a Duo so not sure where on an XL, hopefully someone with an xl will help, loads of people have done it.

Thank you! Have you installed a Shurflo pump in your van? Since I’m in Sweden campervan garages here seem very reluctant to install Shurflo pumps which I don’t understand. They want to go for a new submersible pup and a new pressure switch which I’m not happy abou

Mine was built with a Flojet pump, similar to a Shurflo but I've read many posts here about changing submersible for a Shurflo
. There is a Factsheet on the swop but on a Nuevo  but you should get the gist of it from that Factsheet. Factsheets can be found half way down the home page.

Thank you so much found the Factsheet