Gentlemen,

Thanks for your comments all of them pertinent as usual.

Volumes:

Site 1: 1 x John Deere 6125 400 HP 72 l/hr in standby, but can use 700 l/day depending on power outages.

Site 2: 2 x MTU 396 2000 HP about 300 l/hr each currently using 1,200 l/day, everyday (charter ops)

Coconut oil is available but not in the quantities or for the same cost as diesel. Methanol is readily available (get's distilled into ethanol "Arak" the local deadly brew J ). Cooking oil is available but messy to organise collection etc but I'm prepared to go down that road as it does make sense.

A weekly tank of 5,000 litres is on each site. Site 1 could allow settling out of the water content (and some sediment I expect) however site 2 is too busy (ship port) with a weekly refill. The MTUs already have centrifuge units which are filthy within a week or so. Causes big problems.

Robert is suggesting Dahl units and 1 micron filtration which makes sense at injector level. Skippy is suggesting centrifuge first before Racors (and possibly toilet rolls) and Phil in Oz is saying RCI filters. Hilltopper's idea of warming it up to evaporate off remaining moisture is good and I'll try that by painting both weekly tanks black as they're sitting in the sun. Brainwave's idea to separate off the water is good and I can implement that pretty quickly.

I think in the end a multi pronged approach is viable whereby first as much water & crud is sedimented and evaporated out of the weekly tanks. [I can add a new tank to the ship port to give one tank time to do this while the other is in use.]. Then add something like the RCI unit on the day tank fill line to remove the water and 95% of the dirt.

Only thing left to sort out is how to filter the balance down to 1 micron and get rid of the contaminants like kero and toluene etc