Vacuum booster/reserve

[Minnesota Tapper]

I need to add a vacuum booster right next to my sap releaser to help my system recover faster after a sap dump. I was thinking about using a sanke keg. I have extras laying around and would remove the spear and weld in a bung in place of the spear. Another bung on the other end. I'm a little worried about the keg being designed for pressure and may implode at 27" vac. Anyone have experience using a keg under high vac?

[raptorfan85]

I'd be worried it would collapse at that high vacuum. Even zero tanks that are designed to be under vacuum will collapse under that much vacuum. Use some pvc. You could do a couple sections of 4 inch plumbed together and that would give you quite a bit to help with recovery.

[wiam]

I used an old very heavy 100 gallon compressor tank to do this worked well for many years till I went to electric releaser.