Something else I added as an after thought was a dump valve. I only run one of my three diffusers during the winter and I thought my pump might over expand just one of the diffuser if all the air was sent to it. The dump valve exhausts air from the main line so that the sole diffuser only gets 1/3 (thereabouts) of the pumped air. I can judge this by looking at the boil, but the pressure gauge backs up my guesstimate of the boil.
Sorry for the slow response. Your suggestion makes perfect sense. I will add that in at some point. Thanks Quarter Acre
