The rubber part of spigot

[yuval12321]

Hi,
I have one rubber part in each spigot, so I usually use only one and put it in the outside of the fermenter, while the plastic part tightening it from inside. In the last batch I added another rubber part that I took from another spigot, so then I had one inside the fermenter and one outside, so it was tighter than before. (I had leaks before so I wanted it to be tighter) But then after 3 weeks, all the rubber part that was inside the fermenter was dyed by the beer and was less smooth, and I tried to clean it but failed (so it is still dyed in beer color). Is it normal? and another thing - when you use one rubber part, should you connect it to the spigot inside the fermenter or outside, like I did?
Thanks,
Yuval

 

[unionrdr]

Mine have two seals. I also use one of those plastic deli-style lunch meat containers for soaking small parts in PBW to clean them. I also bought a set of 3 aquarium lift-tube cleaning brushes for scrubbing inside taps & such. Takes a while to soak that stuff loose. Then use a brush to scrub'em before rinsing. Then soak with Starsan & reassemble. But it's still hard to get them to seal well without over-tightening easily. So I came up with this;
Get a sheet of this brown rubber patch material from lowe's or home depot, & trace one of the seals on it. cut it out with a razor knife.

Dunk in Starsan, then insert spigot through mounting hole. Then slide on new seal, then old one, then lock lug.

It'll now be way easier to get a good seal without over-tightening the lock lug.