fuel polishing system, thoughts needed!

[dhayek]

is a great improvement on the unknown. If you know your tanks are clean then it is even better. If fuel is not stored on board for long it's good but if left stored and is susceptible to moisture and bugs then polishing into a day tank is the best way. but then life is not perfect! that's what primary filter/seperators are for.

In a perfect world fuel is stored in storage tanks, transferred to the day tank via a centrifuge. The day tank drain is tested daily for water ensuring freshly polished fuel delivered to machinery all the time. Quantity burned is measured by a sight glass in the day tank.

thanks for the explanation.. well since my tanks are 600 gallons each and the capacity of the polishing machine is 600GPH , i will polish my full tanks once every week, it will be a 2 hours job for both tanks. i think this way i will be protecting my racor, injectors and engine

 

[The engineer]

sounds great

good luck with helping everyone else to have clean fuel too.

 

[jfm]

thanks for the explanation.. well since my tanks are 600 gallons each and the capacity of the polishing machine is 600GPH , i will polish my full tanks once every week, it will be a 2 hours job for both tanks. i think this way i will be protecting my racor, injectors and engine

Not exactly. Your polisher can do 600 GPH of polishing ONLY if one of your tanks is full and the other is empty. If your boat is full of fuel (1200gall) you cannot polish 600GPH, because in that one hour you will be polishing some fuel twice and some not at all, if you get my drift

 

[Piers]

A point about fuel polishing is that it can either be a simple and inexpensive (by comparison) installation just to clean fuel as it's transferred to a day tank, or it can be a serious system designed to keep all tanks spotless.

The 'proper job' would be to ensure the plumbing and the power of the circulating pump are sufficient to create a powerful swirl effect in the tank to stir up any rubbish which the fuel polisher will then take care of. In other words, in and out feeds to each tank with the polisher in the line.

The installation should allow you to select the tank to be polished, you turn it on, and after x hours the tank(s) and fuel will be brilliant.