Ask Experts Questions for FREE Help !
Ask
    CarlsbadBill's Avatar
    CarlsbadBill Posts: 27, Reputation: 2
    New Member
    		  
    #1

    Dec 26, 2010, 04:14 PM
    Very low gas flow from home NG to bbq... shut off valve, quick-connect problem?
    My natural gas bbq (NOT propane) no longer makes enough heat, so I've done the following: 1) remove burner tubes and ensure they were clear (they have spider protection covers and were clear 2) reassembled and ignited... VERY small flames came out of all 3 burners 3) removed flexible rubber supply hose and blew compressed air through... it was clear 4) reattached quick-connect from rubber hose to supply pipe but left the other end (to bbq) open, then turned on the supply line... very small amount of gas came out with almost no pressure.

    My next step will be to purchase another shut-off valve and quick-connect, then turn off the gas to the entire home and replace these 2 items.

    Does anyone have experience with gas shut-off valves corroding inside, or with quick-connect units failing? The shut off is a high-quality ball valve. There is a small pin inside the quick-connect but I haven't messed with it... do these sometimes fail? Any reasonable ideas would be appreciated.
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Dec 26, 2010, 05:59 PM

    HI Carlsbadbill...

    What happens if you disconnect everything back to the shutoff itself? I would disconnect all back to the shutoff and then turn the gas back on and see how the gas flows then, OK? Let me know what you find...

    Mark
    CarlsbadBill's Avatar
    CarlsbadBill Posts: 27, Reputation: 2
    New Member
    		  
    #3

    Dec 26, 2010, 08:13 PM

    Mark - Good idea... I'll remove the quick-connect from above the shut-off valve... and if the flow is good I'll know it is the quick-connect at fault. I'll try it late tomorrow and post the results. Thanks, Bill
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #4

    Dec 27, 2010, 06:33 AM

    Always appreciated!~
    CarlsbadBill's Avatar
    CarlsbadBill Posts: 27, Reputation: 2
    New Member
    		  
    #5

    Dec 28, 2010, 06:44 PM

    Problem Solved! The underground lateral pipe had rusted through in 8 years. The pipe was the proper green-epoxy coated 1/2 inch pipe, and the unions and street-L's were covered with the proper tape (although I don't know if they were properly primed). The problem was that the plumber who did the initial installation did not prime and tape the areas on the epoxied pipe that were slightly damaged by the pipe wrenches during installation. Such minor cuts on the coating led to complete rust-through in 8 years! Also, the street-L's were not quite taped completely, and the corrosion inside the small passages almost blocked them. Thanks for your reply, Mark.
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #6

    Dec 28, 2010, 06:46 PM

    Thank you for posting that information... very helpful, especially if you've installed the green coated gas piping. It shows just how important the small details really are with gas piping!

    Thanks again!

    Mark
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

How to connect cpvc to compression shut off valve [ 4 Answers ]

I am at my wits end I know this is supposed to be an easy fix but I have been trying to cement the compression shut off valve to a cpvc pipe and it pops completely off after 5 hours of drying time as if there was no cement at all. Any suggestions its nw 1:30 am here and my main water is still off.

Gas line shut off valve dryer [ 1 Answers ]

We just had our clothes dryer replaced and the installer (from Sears) stated that the gas shut off valve for the dryer was located too high. It is located a little above the top of the dryer. That's where the gas line was run for the dryer-it is about four feet off the floor and parallel to the...

Gas stove shut off valve [ 1 Answers ]

I have a gas stove in my new apartment (I've never used one before.) there is a wall mounted shut-off valve above the stove. Do I turn this (valve) on/off every time I cook, or can I leave it on all the time?

Changed valve on Hotwater tank leads to low flow [ 1 Answers ]

I have a 40 Gallon Natural GAZ "GIANT" hot water tank. The Cold water in valve was leaking so I changed the piece. I made sure that the everything was clear and clean and that the valve was a BI-Directional flow. The tubes are PEC and I crimped the O-rings into place and they are a GO. ...

Home Water Shut Off Valve [ 3 Answers ]

Do you recommend shutting off the main house water shut off valve? We are leaving our southern California home for six months and living in our second home in Ohio. Our house is 30 years old with main water lines in a slab. A few homes in the neighborhood have experienced leaks in the slab. ...

View more questions Search