I had an issue Sunday with my Pinpoint Marine Co2 regulator (I absolutely love it). The Co2 wasnt passing through the regulator into my Calcium reactor. So I sent an email to Pinpoint Marine asking for assistance. Within minutes the owner called me (keep in mind its Sunday morning) with a solution to fix the calcium buildup in the small tube leaving the bubble vial and passing through to the reactor. Luke suggested I inject lemon juice into both ends and let it soak. Within several hours the blockage was cleared and I just needed to clean it with RO water. Now thats going above and beyond what we consider normal customer service online. Thank you Luke. You have a customer for life!