Thanks for the tips.

I could go a little higher, but I cannot make a complete wall as my wife likes to be able to look through the structure and see some trees on the other side. As Andy VT mentioned if I stack it too high, a tip over would be unfortunate.

I actually have a lot of room on the deck to the left of the evaporator and can simply tarp that pile of wood. I figure I need at least three and maybe four more facecords of wrist sized wood to feel totally comfortable going into the boiling season. The RO I made last year has never been tested and I doubt it can keep up on the heavy flow days. I can see having a mix of concentrated sap and raw sap on the heavy flow days. I also have to consider the RO not working well at all, at least until it is proven.

My current RO setup has one 400 gpd membrane and two 150 gpd membranes. I am also debating replacing the two 150 gpd membranes with a second 400 gpd membrane, figuring that would increase my daily output of concentrated sap. I could have 150+ taps this year on lines and 9 buckets for the grandkids to see.

This year my feed barrel for the RO will be above the RO pump. I will have a pipe that goes through the garage and I will pump from the outside of the garage, through the pipe and into the feed barrel.