bellsov · 1d Is one night/day cycle enough to collect a little sap? I'm heading to my campsite but only able to stay the night. From reading you posts, it looks like I don't want to leave the taps in for a week or... Mapletrade @Mapletrade 1773367374 1 night is enough but its got to be right. Some trees will give 3-4 gal sap in 10 hrs. Then nothing for a few days. Sap spoils about same rate as milk. If it gets 50 couple days its bad, especially if in sun.