A woman cooking on a gas grill outdoors - J.J. Gouin/Shutterstock With spring here and summer just around the corner, many of us are thinking about removing the cover from our grill and firing it up.

If you're someone who uses propane gas while on camping trips or at tailgates, it can feel like a guessing game to know if you have enough propane left in the tank, or whether you need a new one. Well ...