[QUOTE=Jon Wehrenberg;66125]

A few comments. The accumulator tank has multiple purposes. As you now realize one of its purposes is to give a good steady flow to the Headhunter. But it also acts to relieve the expansion of water in the HW tank. Water expands when heated and unless it has somewhere to go it goes out the pressure relief. When the bladder is unpressurized as yours was the accumulator tank was merely water without an air cushion to handle that expansion. Additionally that accumulator eliminates the short cycling of your pump. For anyone with an accumulator tank in their coach, keeping it properly pressurized will allow the pump to run longer, and then rest longer as water is being drawn.

I just had another "AHA" moment. I payed no attention to the short cycling of my water pump for some time now. After reading your message I went down to the shop and tok a pressure reading on the accumulator. Nada, zip, zero pressure. Hmmm. Sooo, a quick burst with the air line and now it seems happy. One question though; is 40-45# about right for the precharge?
Thanks for the insight.