The machine is definitely a 24/7 box, and the room does get a fair amount of sun (for the Seattle area, that is... ). Not sure offhand, but I'd guesstimate 4x over the last six months? It seems like an awful lot for what would otherwise appear to be a closed system.
Is the fluid prone to evaporation or boiling over? I've had to top off my aquagate several times over the past year-ish, each the result of the indicator shutting down my machine. I've checked around all the connections and there is no evidence of leakage, so it seems like it'd have to be boilover or evaporation, but the tank temperature is WAY below boiling (down in the 40s). How often do others find that they have to add fluid to the Aquagate? Thanks! -Dave