Securing dosing lines

[fishsuse29]

I am running the jeabo doser which uses airlines as the dosing lines. I'm having a hard time getting the dosing line to pull from the bottom of the 1 gallon jugs.


What is the best way to sink or secure dosing lines into the bottom of the jugs so that they don't curl up or float?

 

[Breadman03]

My LFS has some rigid tubing. I get it just big enough that I can use it as a sleeve over my sot tubing. I suppose I could get adapters to rigid tube, but these are like $1 and there are no joints to potentially leak.

 

[fishsuse29]

Thanks. Gave that a try and it's working great!