The ring down by the
threads go bad on me quick. Then there is the leaking problem after I remove and replace the syringe I modded a few times---just doesn't fit as tight as it did at first. I use bakers clay (got it at Hobby Lobby) and fill the gap left by the missing ring and also press it on the ridged edge. Then, after putting the syringe tub back on) remove the excess. There's a couple little holes near there, make sure you don't get anything in them, or the
threads.
Then get a bowl and put enough water in it so that when you put the Clearo in it, the threaded end and what you just worked on, is immersed. I put the bowl in the microwave for 1 minute 11 seconds (or until it's HOT). Then put the Clearos in it, cover to retain the heat, and leave for a good ten/fifteen minutes. Remove and let cool. Blow through the threaded part to remove excess water and load.
So far I have had no leaks and it also helps keep the syringe tube in place.
The black tip that comes on the plunger from the syringe that makes the modded tube, can be modded to replace the silicone piece. This job takes patience though.....I'd be more inclined to just
buy them.
But if you want to give it a go, you'll need a BD 3ml syringe.