Using Teflon tape on the bleeder threads will alleviate this issue and allow you to accurately determine when you have evacuated all air from the system.
"We shut the valve down," the lieutenant said, "and we used Teflon tape as a sealant."
Supplies of Teflon bags, Teflon tape, stainless-steel shears and tongs, and aluminium numbering tags must be unloaded from a snowmobile at each meteorite find.
Cylinders We use brass, pack-less, taper threaded valves in almost all cylinders with Teflon tape as the thread sealant.
Threadlocker is also sold in sticks, and in tape form, similar to Teflon tape.
Teflon tape is one of the best materials to use, however, some people have used nail polish (dry 24 hours before inserting the CPU) or other non-conducting varnish.
"They were so good, they even used Teflon tape."
I've also heard people mistakenly refer to Teflon tape, which is non-adhesive tape used to seal threads in plumbing fixtures, as "Gaffer's tape".
Referring to the Teflon tape, he said, "We're wondering how well it's doing out there."
A constant perimeter trough was developed later in which the barrier is a flexible Teflon tape wrapped around three pairs of rollers.