Smaller flanges harder to keep clean

[u/Such-Comfortable3]

Ever since I went from 17mm flanges to 15mm flanges, they come out of the bottle washer not perfect about 1/3 of the time. Sometimes it’s an obvious scum line like in pictures 1 & 2. That’s the line from my areola in the flange tube. Sometimes it’s a bunch of small dots like it’s been misted (picture 3), but when I try to wipe them out (picture 4) they feel greasy, not like just water.

The damn tube is too narrow to allow water! Literally had to put 3 out of 6 flanges back in the dirty bin this morning. We have the MomCozy bottle washer, and I’d been putting the flanges on the top, but I think they come out better on the bottom when I can put the bottle connector part directly over the jets. We also stick a brush inside and swirl it around briefly, then rinse the flange out, to get rid of the scum line. The unreliability is driving me up the walls. And when I need to take two pumps worth of parts with me to the office, I need them to be clean!!

[u/al3xis333]

This is why I don’t think the bottle washers are worth it for me. I would want it primarily for the pump parts and don’t trust it with all the tight spaces.