I'm doing an experiment and want to boil down a liter of room temp water in a vacuum chamber. I bought a 5 gallon vacuum chamber with a 1/3HP Single Stage 4CFM Pump.The room temp water starts boiling rapidly after about 1 minute and keeps boiling for 5 or so minutes if I leave the pump on. However, I'm scared of leaving the pump on for an extended period of time and if I turn the pump off the pressure stays at around -29.2 Hg. Will the water eventually start boiling again once the temperature rises?
Does anyone else have a suggested on how to boil down water effectively at room temperature if this doesn't work?
Do I need a more powerful vacuum pump?