So I setup the BM-T11 to dose Alk, Calc, and NOPOX a few months ago. Hoping to dose trace elements etc. by adding a BM-T12 Slave in the future, but I need to resolve this issue before I dedicate more money to dosing. I have to re-prime the lines every 2-3 days due to air getting in. I added small zip-ties, and that may have helped a little bit, but the issue is still present. I remember having this issue with a cheap Jabao doser I tried years ago, but I just chalked it up to quality at that time. I did take the pump heads out and pulled the lines on the tubing a bit (as I saw in some video on YT), but it didn't seem to help. I'm using silicone tubing for the NOPOX, and regular air line tubing for the Alk and Calc. Both are effected. Any advice? Photo links are below.
BM-T11 Dosing Pump
Air in right-most line
Containers
Container tubing close up
Overall setup
BM-T11 Dosing Pump
Air in right-most line
Containers
Container tubing close up
Overall setup
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