A supply of the proper diameter O ring material and a tube of Super Glue is all you need to make a good seal. You can find both on Ebay. Just be sure to cut the rubber cord at exactly 90 degrees, and use some kind of V block to precisely align the ends as you glue them together. I used to have an O ring splicing kit that had a cutting guide, a splicing fixture, and single edge razor blades in it.

For instance:

https://www.ebay.com/itm/115245640410?

Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!