I am very interested in understanding what the vacuum gages in two location are indicating when this low pressure ascend on us in the next coming day or so. The pump gage has a direct hg measurement that a owners manual says you should have. So okay we get that there and we attempt to achieve a tight tubing system though out the bush and connect a gage to the farthest point. The question I am try to ask is are we reading the hg in the tubing only or are we abele to see the change in hg in the trees from the tap hole too as the low presser front move in.

I could use something to do while waiting for the coffers to refill.