Ray: If you did have an air bubble in the system, it was probably caused by the coolant service. The coolant drains out easier than it reaches all parts of your systems during re-fill.. Please check your coolant level in your coolant tank. After my coach purged it's air bubble after water service I had to add three gallond of coolant. Glad to hear your under way.
Jon: I liked your sustem of water service. Thanks.