I just bought a second dos to do automatic water changes after my old peristaltic pumps tubing wore out. I have set it up for 5 gallons a day over a 4 hour period which was the minimum time it would allow for that volume. My questions are, why is the right head spinning backwards from the label for water change setup but runs the right direction if you try to prime the right side or use for dosing additives? Also, how long should I expect the tubing to last with my setup running 5 gallons a day at 4 hours constant running. Am I about to expect tubing failures every month?
Thanks
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