Try this - next time you dump, flush the tank, close valves and pre-charge the tank with 5 gallons of water and 1 CUP Dawn dish soap. Some folks add...
How has https://www.continuousresources.com/ been to work with? Can they help program the Multiplus 3000 and help you set up and debug the operation....
I have a Reflection 220RK withe 4400 axles and installed the 107's Why - I wanted them to act as bumper stops for my 16" tire upgrade. They are stiff...