[RWH]

Wayne
Good to hear from you. In my opinion the coolant recovery tank should be free to breathe. If you put a pressurized cap on it you will definitely blow coolant out of the overflow tube. I think I even drilled a small hole in the cap of the aluminum tank to allow it to breathe. I do not have the burping from the overflow tube.

I thought I ordered the tank with a vented cap. Jon said he did. The cap I have has a gasket, so it may not be vented. I’ll have to ensure. If needed, I'll drill a relief in the cap.  Thanks

What pressure cap for the radiator finally became the consensus value? The cap on there now is 7# from CRS. It is apparently part of the Arise CRS installation kit. That seems a little low. I think there is an Atlas radiator, so I don't want to over pressure it. 12#-17# seems to be the internet range. What have you found?

By the way, I updated your paper towel particulate filter in the tank level tube to a plastic thread protector cap from a female tubing connector. It has asynchronous air ingress and egress characteristics.