The industry has ways of dealing with water in fuel, this has been going on for years before E10. Tanks are dipsticked daily (or supposed to be) to check the level of water, next time you go to the gas station, somewhere you'll see the long dipsticks.
That works on pure gasoline where water can be siphoned out without harm. When E10 phase separates there is 4.5% water in solution prior to ethanol and water falling out of solution. That is 5.76 Oz of 128 Oz/gallon which already has 12.8 Oz ethanol.
The pickup tubes in storage tanks are purposely a distance off the bottom to be above the level of phase-separated fuel and water. There are special filters that will restrict the flow when water level is too high, if you find fuel flow very slow at a pump chances are that filter is working...... on a smaller scale, those water separator filters are on your airplane or boat. There are commercial additives that claim to reverse phase separation, e.g., Cim-Tek Hydroburn (available in 55 gallon drums).
Cim-Tek doesn’t list MSDS which would list the basic chemistry of their product. There is no reason to believe it is any different from any other in providing more ethanol-like solvent to lift even more water into solution. No profit involved for them to tell you to just add E85. Phase separation of a nasty white mess of ethanol and water at the bottom occurs when there is more water than the ethanol can carry. Just add more ethanol to make the problem go away.
“But then I will exceed 10% maximum ethanol permitted by Yamaha!” So what? The other treatments are alcohol, but not ethanol, they too put you outside the permissible formulation.
In your vehicle fuel tank, the pickup tube is right at the bottom of the tank, so you want something to either reverse the phase separation or disperse the water droplets into something finer than ethanol can do. There is no harm in "burning" the finely dispersed water in a burnable solvent.
Water is dissolved in solution, not “fine droplets.”
If burnable 10% ethanol is “the end of the world” as some would have one believe, you say 4.5% incombustible water is ok? I will not disagree that poor running for a tank may be an acceptable solution vs draining/flushing the tank. But strongly disagree with the claim pushing water through the engine is in any way desirable.
Using 0.0175% water is roughly 2.25 oz or 4.5 tablespoons in a US gallon. If that sits at your fuel pickup, vehicle is not likely to run very well, may not even initially start. That is what most call "bad gas". Fuel treatment or replacement required.
First, you are off by 100.
0.0175% is 0.000175. Just as 4.5% is 0.045.
Second, we are talking about the ability to carry water in solution. The thing that happens when you dump a packet of Kool-Aid into a pitcher of water. Water does not pool at the bottom until the limit is exceeded. “Treatments” provide additional solvents to dissolve more water into the fuel. Ethanol plus dissolved water is what is responsible for ethanol’s bad reputation for corroding fuel systems. Ethanol can’t do it by itself.
Brake fluid is also an alcohol. Will etch fingerprints into paint and plastic with help of moisture from the air. Calipers don’t start corroding until brake fluid finds some water.