Originally Posted by gasman6674
The checks are in the acme nut portion of the pigtail. You could switch the suspect one to a copper POL pigtail (it Will work) as they do not have checks.
Due to your post I have another question. The constant "pinging" noise I mentioned occurs no matter which tank I'm drawing propane. Would one bad pigtail still cause the pinging noise after the tanks are switched? Additionally I can feel a tapping in the regulator that's in sync with the pinning noise.
Please forgive the multiple question but I want to fix the problem where I'm not dead in the water, gas appliance wise, 200 miles from home.