[qcj]

These things are the devil to get to with a wrench. The bottom one is easy but the other three there is not much room. There are 8 hoses in all coming and going from the manifold. Four going to the cutoffs and four from the rear of the manifold going to the AH and the heater. My 07 coach had a inline ball valve cutoff for each line going and coming from the dash heater. It did not have an Aqua Hot. When I changed the coolant I just disconnected the hoses from the cut offs and blew air through one to get all the coolant out of the heater. Worked great.
I don't see why an inline ball valve cutoff can't be installed here and do away with the manifold all together. Am I missing something or can this be done?