PARRISHNM

I have over 100,000 miles on the Roadmaster Air System and have never had a problem. I never needed to pump the brakes. We test the operation before we leave of all lights and the brake system but pumping isn't necessary. The cylinder works perfect every time unless the air hose didn't lock on the receiver.

You are right. If you sprung an air leak, both tires will go flat before you may be able to stop. There is a device that will permit you to accomplish balanced pressure in tandem tires. It is made by Crossfire. If the pressure drops to 90 pounds is automatically separates the two tires. You can mount your pressure monitor sending unit on the Crossfire unit to monitor the actual pressure in both tires. I have used these units through Alaska for 5000 miles, ( including the top of the world highway), and never had a problem with them. A total driving distance on the coach of 80,000 miles.