Here I go with another silly bunch of questions. Seems I catch a lot of leaks at schrader cores. Replace them with a core removal tool. Double check with the D-Tek. All too often the NEW ones leak! Now I'm not wreching them in, but the "CDI" brand our company buys us suck. Are these cheap? Bought "J/B" 5 pack on my own; no problem. I feel like a moron waving the sniffer around and having it scream on LOW setting after owners agree to our flat rate price of $32/core. Is this just me???? OTHER question--- CAPS: Lots of older units still have the brass caps which tighten on with a wrench. Most new units have a plastic cap w/o-ring that can ONLY be finger tightened. I've gotta think design engineers agree with plastic and 0-ring. But I feel more secure backing up the service valve and torquing in a brass cap with a wrench.
---Would appreciate feedback