Tanklöschfahrzeuge normally do use their internal tanks, at least in my area. This makes sense because it reduces response time and you can start pumping out wa

Tanklöschfahrzeuge normally do use their internal tanks, at least in my area. This makes sense because it reduces response time and you can start pumping out water immediately while the connection to the water line is made. The problem is not so much the driving range, that is true. The problem is that taking out a fire might take 10 minutes, 10 hours or 10 days. The electric truck is fine for 10 minutes, but it won't be fine when you have to stay on site for a couple hours.