problem with Gas grill.
I have a Great Outdoors, Pinnacle model gas grill purchased from Lowe's a couple years ago. It is a 4 burner, model. I have never had any problems with it until today. I ran low on gas, so I changed tanks. With new tank, I can only get a very low flame, even though all 4 burner knobs are on high. I had 2 other full tanks that I tried that I got the same results. These tanks are exchange tanks, by Amerigas, that have new valves, and are spiffy clean new looking.