[andyathome]

I can see oil in the return line to the tank, from the prv but dosent apear to be flowing and also can see the 4th valve move when other valves move.
But from memory last night it looked like the 4th valve was opening , not closing when the others opened
The pump seems to labour with stick movements, so I'm hopeing it's a set up issue with the 4th valve.

Will have another look when I get home.

Cheers andy