I've got a 33 gal, 6 HP Craftsmen Air Compressor. The drain on the bottom was a bit rusty and hard to turn. I sprayed PB Blaster (I think) on the threads. Wiped the excess off with a rag after a minute of soaking. It was much easier to open/close the drain. But now it leaks air and won't get above 45-50 psi. I don't know if I damaged a seal/gasket with the spray. Or if rust is just blocking the valve from shutting all the way. I've been just finger tightening/opening it. Do I need to put some channel locks to it? Anyways, any help would be great.
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Compressor Drain leaking air