Gonzalo,

I always use a manual Festo ball valve after the pump and an electronic switch that is available from Intairco here in Australia to switch off the solenoid. But if there is no solenoid I also use an electronic switch to switch the pump independently from the ECU.

It is part of my start and spool down routine to manually open and close the ball valve. Whenever there is no need for Kero I switch it off.

As for the electronic switches - they are controlled by a separate channel, so if I lost the ECU for any reason, I can still either close the solenoid or switch off power to the pump.

For what it's worth, I have never received any manual valves with any of my AMT or JetCat turbines.

Cheers,

Jan