Algae in tanks

W hen you get all the bad fuel out of tanks try to clean the inside of both tanks se best you can,if tanks have a plug to drain them you can let the bad junk run on out, If you go by a boat parts shop they have the algae remover in large bottles, try to keep the tanks full as you can so treated fuel will get on top of inside of tanks when you hit your brakes, it can take a few treatments if you cant get as much of it cleaned out while tanks are drained?

 

I use this stuff:

Power Service Products 09016-09 $27.71 Diesel Fuel Additive, 16 oz. | Zoro.com

 

A friend of mine used Power Service, it works well. Although he did say, you have to have extra filters at the ready. In his case, He did have the algae pealing loose in clumps, and clogging his filters.

 

I'd drain and clean the tanks out.

Way I see it, you can dump that algae killer in the tanks and blow hundreds of dollars on fuel filters over the coming weeks. Or you can get the tanks cleaned out, treat the fuel and just have to worry about whatever is left in the lines.

 

As long as there aren't any sharks, you're good to go.

 

avoid Biodiesel

 

Make sure you diagnose the problem properly. Many time fuel system problems are blamed on algae, when the problem has similar symptoms, but is treated differently.
Asphaltine is just like it sounds. Crude oil has all sorts of compounds in it, most but not all are eliminated during the refining process. the leftover sludge of the refining process is what they pave roads with, but some of it is still in your fuel. Under certain circumstances, hot recirculated fuel, combined with bio diesel, combined diesel refined from poor quality crudes can leave deposits in your tank, clogging things up.
Asphaltene agglomeration leads to the formation of larger and larger clusters and solids, which are very difficult to completely combust. These solids grow so large that they will not pass through the filter element. They become part of the polymer and sludge build up plugging the filter.
This website has a lot of info diesel fuel, including algae and other contaminants
https://diesel-fuels.com/real-story-of-bad-diesel-fuel/

I have used this product to deal with asphaltene:
Total Diesel Fuel System Cleaner - Penray
Pen Ray also has other additives to deal with algae.