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Originally Posted by cat man do Any more info there mate, I'll be in the same boat in about 18 mths time. |
Contact the company of your choice for their fuel polishing specifications and schematic. Each company sets their systems up a little different. My system is fairly compact. However, my system uses an additional "paper towel" filter beside my big Racor filter - the fuel is pumped through both. The company recommends using only 'Bounty' brand paper towels. The paper towel container is about 18" tall and I need another 18" vertical clearance to change the role, so a total of 36" vertical clearance.
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We'll have a total of 2400l in 6 main tanks pumping up to a gravity fed 150 l tank x2, 1 for each motor.
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Yes, the 150 l tanks are your "day tanks." That would make a well thought out fuel delivery sytem.
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Most times we figure on having about 1000l on board and the other tank's empty to save weight, and add to performance/economy.
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I'm not sure keeping one tank empty is a good idea. An empty fuel tank leads to condensation inside the tank. From a fuel maintenance perspective, it is better to keep your tanks full in climates where you experience high humidity (which is anywhere on the water).
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We also want some form of fuel polishing system on board, and I really need to get the spot sorted for that ASAP.
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You will really like your fuel polishing system. In my opinion, they are an essential piece of equipment on any long range ocean cruiser, especially a power boat.
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Do you find that you use a lot of filters?
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No, I have my fuel polishing system for 5 years and I have never experienced contaminated fuel or dirty filters. I just change the filters as part of my normal engine maintenance. No stress, no strain. I usually leave my DC fuel polishing pump on 24/7.