Originally Posted By: Wolf359
Originally Posted By: andyd
Jack of many trades. Natural gas is lower pressure than propane, easier to fit.. Cesspools are nasty but simple, plumbing takes practice, electric needs a meter, carpentry, roofing, painting are all things I've worked at under licensed supervision. I am comfortable doing my own repairs. Don't get me started on insurance.
Checking for leaks with a lighter after lunch could have been a Darwin award contender. A little dish soap cut with water, is what I use. Back in the day when a VOM was 'spensive, the old timers licked two fingers and got a zap.
I limit myself to small stuff now-a-days
Oh yeah, I saw a plumber do that once. You check for leaks right away afterwards, not after lunch. I thought he was nuts too, but gas is only 1/2 a PSI, so yeah, you just blow it out if there's a leak. The soapy water is safer. They even sell it at home depot although you can easily make your own.
Also a cousin of mine works for the gas company, he says that they don't even fix gas leaks outside if it's far enough away from a building, can't remember if he said it was 6 or 10 feet. There just isn't enough gas to mix with the air to cause an explosion when it's outside. Probably explains why I get whiffs of gas while walking around outside in the city, just not enough for the gas company to worry about.
Correct
Explosive range is 5-15% gas in air, perfect combustion @ 10%
Most residential is at 4-7" WC (water column) which translates to 0.25 PSI
If you want to be extra thorough, you can do a pressure test @ 3 psi with a gauge and hand pump, then soap test with the gas on