Equipment manufacturers specify that ZERO free water must reach the engine.

Zero water is not realistic. All diesel contains some percentage of water. The most important thing is to keep the water below its saturation point so that it stays dissolved rather than entering your equipment as free water.

Saturation points vary from roughly 50 ppm to 1800 ppm based on temperature and on the petro-
diesel/biodiesel polishing fuel on boatratio. When water content reaches the saturation point, the excess water will fall out as free water. Your diesel may hold 90 ppm dissolved water when warm, but only 60 ppm when it cools down due to colder weather. The 30 ppm difference falls out as free water and settles to the bottom of the tank.

Knowing the water content is important and getting rid of it even more so. (To test fuel see our Fuel Products Page)

Complete Plug and Play Systems Or We Can Help You Build Your Own

Follows are complete systems but if you want the key components contact either our East Cost, Gulf Coast or West Cost offices.

480 Gallons per Hour Fuel Purification
Dieselcraft Model 24/7 Installation on Stored Fuel

8.3 gallons per minute with a 120 volt 1/2 hp Baldor totally enclosed and fan cooled motor




14 GPM Portable Diesel Filter System
Model FPSP14-12V

  • 12 volt DC
  • 30 minute duty cycle
  • On for 420 Gallons then off for 30 minutes
  • Two Stage Filtration
  • Removes water and solids
  • Includes Manual Fueling Nozzle and two 13 ft Hoses

$1795 Plus Shipping


400 Gallon Per Hour 120 volt
Low Cost Fuel Polishing
Model FPS-400

Dieselcraft’s FPS-400 is the only low cost, modular system that can be ordered to fit your budget that will remover 99% of the water and large particles in fuel with filter-less technology and then spin-on 10 micron absolute filtration.

The base system consists of a hand truck frame holding a Dieselcraft Fuel Purifier, 400 GPH 120 volt pump and 10 micron filter with 20 feet of hose, a magnetic fuel conditioner, digital flow meter and a water alarm. One can add a digital timer if desired.

1800 Gallons Per Hour Vane Pump Driven Fuel Polishing
Model FPS-30 Diesel Fuel Polishing System

  • 1800 GPH
  • 115/230 volt single phase 50 or 60 Hz
  • Dimensions – 32 x18 x 47” tall
  • Removes over 99% of water
  • Anti-asphaltene fuel conditioning
  • Absolute particle filtration to10 microns
  • Dual Filtration allows no stopping to
    change filters.
  • Epoxy powder coated.
  • 2 each 25 foot suction and discharge hoses
    included with cam lock fittings.
  • Digital flow meter.
  • Semi-pneumatic tires.
  • Weight 220 lbs.

1980 Gallons Per Hour plus Pressure Washing
Model FPS-PW

There is no other tank cleaning system on the market that compares to Dieselcraft. This tank cleaning system is designed with a high pressure high flow pump and uses a tank cleaning spray nozzle that cleans 360° of all inside tanks surfaces by pumping the fuel at high pressure to remove solids from the tanks walls. No cleaning agents needed in most cases.

Regardless if the tank is above ground in-ground are on board a vehicle this will clean the tank better than any other system available.

  • Transfer Flow Rate 37 GPM
  • Filter Rate 33 GPM
  • Pressure Cleaning Rate 30 GPM @ 75PSI
  • Maximum Tank Diameter 18 Feet
  • Dimensions 37″ wide x 45″ deep x 41″ tall.
  • Particle Filtration to 10 microns standard.
  • Suction and Discharge Hoses Included.
  • 120/220 volt 50-60HZ 1.5 HP
  • Weight 570 lbs.

FPS-Skid Mount 150

Skid mounted 150 GPM Diesel Powered Fuel Filtration

150 GPM Diesel Powered Fuel Filtration

The FPS-Skid Mounted Unit is a diesel engine powered system with a variable out put to 153 gallons per minute. The only system available for the high volume and portable applications in the remotest of locations.

  • Measures 44×44 inches
  • Weight 1200 pounds
  • Two 8 inch Bag Filters
  • One 10 inch Coalescer
  • 2 inch ports with hoses included.
  • Drip containment
  • Easy to read control panel with emergency stop


Compact and Economical Diesel Fuel Polishing and Water Removal
Model FPS-CP-3 420 Gallons per hour

115 volt motor
economical fuel polishing and fuel water removal
Filter-less Purifier to removes over 99% of water and large contamination in fuel without filters.

Water/Debris alarm to indicate time to drain the purifier.

2 each 10 foot suction and discharge hoses included.

The FPS-CP-3 is a basic tank cleaning system designed for the transfer, water removal, polishing and/or re-circulating of diesel fuel in storage tanks in ground as well as above ground. Also for boats, generators and trucks.

The base system utilizes a 7 gallon per minute continuous duty pump in conjunction with a Dieselcraft 5×32 purifier plus and two 10 foot hoses.

Options: Digital Fuel Flow Meter.