Propane bbq "whistling"?

[ezbtr]

Once in awhile it does that, more so when it's hot (100 here )outside?? Maybe when tank is low? It is low but works ok, I do have a spare. No leaks I can tell, no crazy flames.

 

[alldodge]

Mine use to do same thing when it was running low and I liked it, let me know its getting close.

Doesn't do it now because my 500 gal tank is on the other side of the drive way

 

[MRS]

Had that happen before tapped on the regulator and it stopped.

 

[ezbtr]

Mine use to do same thing when it was running low and I liked it, let me know its getting close.

Doesn't do it now because my 500 gal tank is on the other side of the drive way

yup, thats what it is, I looked it up some more, the houses out in the country here have HUGE propane tanks too