Precision Fuel Solutions

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Drawing and analysis of one diesel tank bottom sample-FREE

On the Dirty Side Massive Corrosion


Not what you want to see when you pull up one of the floor hatches!

However, if of the bilge pumps kicks on ....... The oily bilge and fuel leak will just be the first of the issues.

If you don't know the condition of your tanks finding out can be relatively  inexpensive.

On the Clean Side

Almost no Corrosion


Your Solution

T he majority of fuel tanks, especially on yachts,  are very dirty by the time filters start to clog and a problem is noticed.

This is a critical point. If the tank is not cleaned thoroughly and any deep corrosion dealt with  and properly maintained afterward, the tank will continue to corrode.  Whatever the makeup of the sludge in the bottom of a tank,  it is always corrosive. If the tank is made of metal this is a problem.  

If the boat is used a little more than most the tank probably just needs a good cleaning and has not corroded to the point of worry yet.  

Usually the lowest area in the tank will have the worst corrosion. A portion of the lowest area is often lined to prevent any future problems.  

Depending on many factors, it could look like any one of these. Age, usage, additives, fill level, and surrounding conditions can all play a part in what happens in there.

Fuel Tank Cleaning and Fuel Tank Repair Service


 Typical Tank Interior

Corrosion in Spots

Whether the owner of a multi-million dollar yacht or a farmer with a tank problem we specialize in giving the customer what they need to restore and maintain a clean, reliable fuel system. We don't sell a service, we provide a solution for current and possible future problems. We pride ourselves in performing what is potentially very dirty work in a very clean way.  We protect the customers property as if it were our own.  There isn't a one-size-fits-all solution for customers with a tank or fuel system issue. A fuel polish is effective at removing suspended contaminants and water from fuel. However, in most cases, a fuel polish is not sufficient to actually clean a fuel tank with even a shallow layer of sludge and/or microbiological  debris.  For tank cleaning in the Seattle area or marine diesel fuel tank repair in Seattle or nationwide, we are the solution.  Diesel fuel tank cleaning and repair are our most popular service but we offer other related services as well.  At PFS we will do what we say we're going to do when we say we're going to do it. If it can be done better or more cost effective by another business, we will steer you in the right direction!


What's inside your tank?


Fuel Tank Repair:

I want to thank Les and his crew for the excellent job they did repairing the leaking diesel fuel tanks on my boat. It was a fairly complex job that was handled very professionally. The work was completed on time, and to the original cost estimate, even though the job turned out to be a bit more complicated than first thought. Three cheers to Precision Fuel Solutions for turning my nightmare into sweet dreams ! Cheers........Alan


A Pin-Hole Leak

  A Trickle adds up



In a very dirty tank you will   have a bad  corrosion problem also.  Boat owners hope that their fuel problem came from the fuel dock instead of from their own tank.  This is hardly ever the case though.  Most often it is just months and years of fuel breaking down and/or microbiological growth.  Up to an inch or more of "sludge" accumulated on the bottom of the tank is common especially on yachts that are seldom used and when they are, only in calm weather. When the boat begins to be used again and gets tossed around a little that layer of sludge gets stirred up and changing a few filters will never solve the problem.

The only thing that will solve a tank problem like this is steamcleaning, scraping, and most often lining the tank to some degree. 

In a small percentage of cases a tank is fairly clean.  This is usually only on boats, or other machines, that are well maintained, used often, and only a few years old with a well designed tank and fuel system.  Even these clean tanks will often have patches of biological growth that will eventually start clogging filters as they break apart. These patches don't need to be large to cause a problem. The problem isn't really the size of the growth, it is what is happening under it. These "patchy" spots of biological growth are especially good at etching pits into the tank wherever they are attached, sometimes clear through the tank. Pits under these patches can usually be spot-repaired if they are leaking or deep enough to be a concern.

The good news is that if a problem is caught early and, after cleaning, proper additives and care are used problems can be prevented for many more years.