Check valve before and after bubble counter?
Do i need a check valve before and after a DIY bubble counter? Additoinally if the one before the bubble counter is actually ON the regulator is it OK that the mineral oil fills the tube between the regulator and bubble counter?
46 Gal Oceanic Bowfront
Eheim 2026 & XP2
2 X 96W 6500K/10000K
Eco-Complete with Laterite
Pressurized Co2 with Rex reactor