Trs21 leaking

[GroovyOctopusLabs]

Do the TRS21 Vacuum pumps sound louder and louder over time?

after doing this test, I learned that the trs21 pumps do not hold vacuum while off overnight and I didn’t close the valves on the collection pot so the test was pointless. But I found out which pump was responsible for the low recovery rate through process of elimination. For now I’m just using one TRS21 pump and getting over 80% recovery rate.