Hi Maggie,
when I started using Lact aid, a gal from this forum suggested that I 1st run the milk through a damp paper towel, THEN through the lact aid filter. I found this made the lact aid flow perfect. I did the same with the breast milk.
also, at times I would 'test' the lact aid flow, as in I would suck on it. I would occasionally find it was clogged, high up and when I flushed it through, it solved the flow problem.
Have you tried taping on the tube? I used a band aid and that worked well.
Hoping that you will be able to get a full milk supply and be able to leave the lact aid behind. : )
I last BF over 18 years ago, and successfully BF our adopted daughter.
Best wishes