I must take issue with some of the repair techniques shown in your video.

I have repaired several hundred snorkels in the last 4 years so i am very familiar with how Sheaffer originally set up the pens.



First of all, shellacking the blind cap screw virtually guarantees the next repair person may break or crack same. It is not expected by proper repair folk as Sheaffer NEVER did this. Obviously the proper workings in creating a vacuum pressure rely on the rubber gasket in the blind cap and if it is worn it needs be replaced not shellacked in.



Secondly, shellacing in the bottom of the bung likewise will guarantee a difficult removal of the sac by the next repair guy. In all likelihood resulting in some destruction of the HR feed in the back which sticks through. No need to do this.



Lastly shellacing in the section was also never done by Sheaffer. they used a rosin based sealant which never truly hardens. Modern thread sealant to Sheaffers exact specs is available. Again the problem is that the next repairer will not be expecting this joint to be bonded by shellac and if sufficient heat is not used then the chances of cracking the section while attempting to open up the joint goes up by leaps and bounds. I assume you understand that a crack in the section and the snorkel will not work. I've had 6 or 8 of those (usually hairlines) and in all cases the section must be made airtight or replaced. Tightly screwing together the parts without shellac will allow the pen to work fine.



In summary, I think the philosophy you stated in the video ( There's no reason for anyone to open the serviced pen back up for a long time (another 50 years?)) needs be re-thought by you.



In this modern era of heavily saturated inks, the likelihood of a sac failure relatively quickly is possible; there have also been instances of defective sacs getting out into the repair world in the last 10 years. It is entirely possible that your "serviced snorkel" may needs be re-serviced much sooner than you expect.

