Scania airport fire truck

[Tgrzes]

Wow! Great info. I have a lot to think about! The pump I have is rated 6 - 12v and the solenoid valves are 3.5-24v. Both seem to be working fine with the 7.2v battery.

I have some windshield wiper tubing that I’ve been using during tests, but I’m going to see if I can get some of the tubing you recommended for the monitor. I picked up 6mm ID x 12mm OD black silicone tube; it’s a perfect scale match for the 6” hard suction that we use for drafting. I originally didn’t think of filling the tank thru the pump, but now that you’ve mentioned it, I think I’ll include another solenoid valve for tank fill while drafting. I’ll post plumbing details in my thread when I get to that part of the build. Thanks again for all the electrical info!