1) Have your fuel tested annually
Two (2) fuel samples need to be drawn annually. One from dead bottom for visual inspection for free water and debris. The second sample from the supply line to the prime mover and sent to an accredited laboratory for testing for existing particulate and stability using ASTM Approved Test Methods.
2) Kill the bugs
A biocide, Kathon 1.5P, should be introduced to the fuel per manufacturer recommendation to control microbial growth within the diesel fuel storage tank. Kathon 1.5P is an EPA Registered Biocide in all 50 States.
3) Treat the fuel for stability
LTSA-35A is a chemical additive (treatment) that promotes diesel fuel stability, is self-dispersing and does not require costly injection systems for introduction to the stored fuel.
4) Remove water and sediment regularly
Removing water and sediment regularly can be accomplished by filtering of the stored fuel through a series of water separators and media filters. Portable equipment can be contracted or a stand alone, automated filtration system can be permanently installed directly to the diesel fuel storage tank. When installing a permanent system, NFPA Equipment Requirements, Labeled and Listed apply. FTI is the only manufacturer of automated stored diesel fuel maintenance equipment that is FM APPROVED and NFPA compliant.

Fuel Maintenance Program
Stage 1
100 Wire Mesh Media Strainer
Stage 2
Coalescence Water Separation
Stage 3
Water Separation and Removal
Stage 4
30 Micron Water Block Media
Stage 5
10 Micron Particulate Removal
Stage 6
Emulsion Water Removal
Stage 7
3 Micron Particulate Removal
(1.5 Micron if required)

Ken Carta
Solar Way Facilities, MCI
“Since the installation and operation of the FT-I-8A, a fuel sample was pulled from the bottom of the 10,000 gallon storage tank and a BS&W Spin test was performed and the results show no measurable amounts of any type of contamination”.
Mel Ramage
Chief of Plant Operations III
Atascadero State Hospital