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Glass to a point is OK,but it has to be the right kind of Glass,Belljars have been used for hundreds of yrs,it is at least 1/4 inch thick.

Just do not not use jars,some people have used pickle...

Be carefull using jars,you can get hurt bigtime.

I use the HF pump,works to perfection even after 2 yrs,Just cannot run it in the shop.
Put in in the side yard outside and let her run.
Size of the pot makes no diff as long as you can pull full...