I have the Alkatronic on my backup system and running Trident on my main system. I actually haven’t replaced the tubing since I got it but have the replacement tubes ready to go for when the time comes. I have no concept of time with two kids being born and the pandemic but I feel like I’ve had the alkatronic for 1.5 years now.Hey FarmerTy! Are you still using your alkatronic? If so, do you replace the pump tubing at any certain frequency? Thanks!