OF
Well-Known Member
thanks
I did some more research also and found most stoppers are EPDM which is completely safe with iso, now I just need to figure out if it well create a nice seal with those air notches in the stem
Good find WRT A rating for ISO. Thanks.
I'm more than a little worried that jamming a wedge into the tube looking for a dicey seal around those notches (which will be left 'high and dry' by the angle of the stopper at the notch bottoms without some compression) will come to grief. I advise caution trying to push it in to get a good seal.
I wonder if an o-ring of the right size, a spacer to hold it up in the bore and a smaller plug inside the o-ring wouldn't be a safer and more sure bet? Maybe if I get bored later on I'll go looking for my o-ring kit....
OF
Edit: After some reflection I decided I was working to hard on this (something I try to avoid....). Here's a simple solution I just tested I hope you'll like:
I inserted a one inch piece of 1/2 inch OD Silicone tube into the bowl end about half way. It tightly hugs the walls below the notches on its' own. Then, using some hemostats (old school 'roach clip'), I clamped off the open end of the tube. Seals great, no stress around the notches, cheap and easy. All good points IMO. Forget o-rings and spacers......and rubber stoppers.
Give it a try?
OF