Had a similar headache myself last spring. Snaked it once, thought I was good, but nope—roots came back with a vengeance. Ended up replacing about 15 ...

Good call on the fire extinguishers—I learned that one the hard way after a close call with some sparks while soldering copper pipes. Another overlook...

WD-40's alright for quick fixes, but yeah, PB Blaster is my go-to as well. Had an old galvanized pipe fitting that just wouldn't budge... sprayed it d...

I've had similar experiences—liquid sealants seem convenient at first, but older fittings often have imperfections that liquids just don't fill reliab...