So my Denford's little pump is struggling and I would like more pressure to 'wash away' the chips.

Any thoughts on retrofitting something like this?

https://www.keengardener.co.uk/hozel...giHRoCnb7w_wcB

It seems to give good pressure, see vid.

https://www.youtube.com/watch?v=WKUoul-f2io

I would look at the 'submersible' ones but I dont want to cut the coolant tank if they do not fit into the hole of the current pump. With the pump above I can simply run the inlet into the tank.