Hi, this is Ben Thomas with UST training, and this is a tank savvy minute. We’re here at a UST site with an Evo 550 by Franklin fueling system. This site has double wall interstitial monitoring, that means double wall tanks and piping with sensors. Click on the button, sensors and we have sensors located under the dispenser pans on the tank top turbine sumps and the interstitial monitoring of the double wall tanks. There’s a couple of different types of sensors out there some sense of float sensors. They are activated by the rising of liquid inside a containment area pushing up the float sending a trigger to the alarm this is what’s called a non-discriminating sensor though this kit will tell you whether or not there’s liquid in there, but it won’t tell you if it’s fuel or water. These discriminating sensors these optical sensors that are found in certain interstitial systems can differentiate between fuel and water. Obviously, fuel is the worst but even if you get water in your containment system you want to get it out right away but there is a difference discriminating sensors that’ll tell you what type of fuel it is and non-discriminating sensors, those floats. This is Ben Thomas with UST training, this has been a tank savvy minute.
