Blood Drug Testing

Our fuel tank pressure kit I was surprised to read in Flying

Summary: Our fuel tank pressure kit I was surprised to read in Flying recently of Peter Garrison s account of damaging his altimeter to the tune of $300 and completely destroying a 700 mph airspeed indicator by using them as pressure gauges while leak testing the tanks on his airplane You typically pressurize a tank to 1 5 to 2 psi and then brush on soapy water and look for bubbles The problem is finding a pressure gauge that will read such a slow pressure By far the cheapest is found in a blood pressure test kit They are sold at drug stores and other health care supply stores for people who like to take their own blood pressure to find out if they re going to pop off in the next few hours or whether to go to the bingo game with their friends Shown here is our rig which used the squeeze bulb as a pressure pump Our gauge shows the pressure in millimeters of mercury but the conversion is easy 1 psi equals 51 7 mm Hg

Image Dimensions: 328 x 264