Phase Separation and What it Means for You


Detect_Phase_SeparationWith over 90% of U.S. gas stations blending gasoline with ethanol, an important thing to consider when maintaining fuel tanks at your station is Phase Separation.  Phase Separation occurs when ethanol absorbs water and separates from the gasoline , sinking to the bottom of the tank.  Due to its lighter density, it can remain undetected by a traditional water float and may end up being pumped directly into customers’ vehicles, which can lead to damages you will be held liable for.  If left unaddressed for too long, the costs and consequences of Phase Separation could lead to serious damage to your reputation and business.

The best way to prevent these issues from arising is constant, diligent tank monitoring which will allow for early detection.  Veeder-Root offers the Phase-Two Separation Float, which replaces a traditional gasoline float kit and detects both water and phase separation in your tanks.

For more information on Phase Separation, read this article on Veeder-Root’s Fueling Solutions blog here.


The John W. Kennedy Company appreciates your business and continued support!

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Stiction: What It Is and What You Can Do About It

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The Campus, the online technical news resource from Franklin Fueling’s FFS PRO University, has published an article detailing “stiction”, a term for static friction, between probes and floats and its effects on them.  When stiction occurs, it can cause the float to remain in its current position regardless of whether the product level rises or falls, thus leading to inaccurate readings and leak detection from the probe.  Stiction can occur when a probe is placed improperly or if the tank is tilted at an angle.  It can also be identified when tank levels remain constant for long periods followed by a sudden rapid increase or decrease in levels over a short period.

One of the easiest ways to prevent stiction is to ensure proper, plumb installation of probes, as well as keeping the probe and floats clean regularly.  Another solution, offered by Franklin themselves, is their new brand of INCON digital probes, which feature a vibration motor in the probe head which periodically activates to stave off stiction and mitigate its effects.


You can read the full article here, and you can find out more about FFS PRO University by visiting the official site.

The John W. Kennedy Company appreciates your business and continued support!

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