Method and apparatus for limiting acidic corrosion and contamination in fuel delivery systems

A fuel delivery system comprising:

• a storage tank containing a fuel product;
• a sump;
• a pump having a first portion positioned in the sump and a second portion positioned in the storage tank;
• and
• a water filtration system comprising:
• a water filter positioned in the sump and configured to separate the fuel product into a filtered fuel product and a separated water product;
• a fuel inlet passageway in fluid communication with the storage tank and the water filter via the pump to direct the fuel product to the water filter;
• a fuel return passageway in fluid communication with the water filter and the storage tank to return the filtered fuel product to the storage tank;
• a water removal passageway in fluid communication with the water filter to drain the separated water product from the water filter;
• a drain valve positioned along the water removal passageway;
• a high-level water sensor positioned in the water filter;
• and
• a controller that opens the drain valve when the high-level water sensor detects water in the water filter.

A fuel delivery system comprising:

• a storage tank containing a fuel product;
• a sump;
• a pump having a first portion positioned in the sump and a second portion positioned in the storage tank;
• and
• a water filtration system comprising:
• a water filter positioned in the sump and configured to separate the fuel product into a filtered fuel product and a separated water product;
• a fuel inlet passageway in fluid communication with the storage tank and the water filter via the pump to direct the fuel product to the water filter;
• a fuel return passageway in fluid communication with the water filter and the storage tank to return the filtered fuel product to the storage tank;
• a water removal passageway in fluid communication with the water filter to drain the separated water product from the water filter, wherein the water removal passageway extends to a second storage tank positioned in the sump to drain the separated water product into the second storage tank.

A fuel delivery system comprising:

• a storage tank containing a fuel product;
• a dispenser;
• a water filter;
• a fuel uptake line in fluid communication with the storage tank and the dispenser to deliver the fuel product to the dispenser;
• a filtration uptake line in fluid communication with the storage tank and the water filter to deliver the fuel product to the water filter, the water filter being configured to separate the fuel product into a filtered fuel product and a separated water product, wherein an inlet to the filtration uptake line is positioned closer to a bottom surface of the storage tank than an inlet to the fuel uptake line;
• a fuel return passageway in fluid communication with the water filter and the storage tank to return the filtered fuel product to the storage tank;
• and
• a water removal passageway in fluid communication with the water filter to drain the separated water product from the water filter.