Pond Boss Forums AERATION Systems questions I there any good non elec. aeration systems?

Yanked from a bicycle forum. I knew that Methanol, Ethanol and Isopropyl were different but not sure how different they were.

Methyl hydrate is also known as methanol, methyl alcohol or wood alcohol. Denatured alcohol is almost pure ethanol, also known as ethyl alcohol, plain alcohol, grain alcohol, moonshine or sippin' whiskey. Stuff is added to ethanol to make it either distasteful or poisonous to make it denatured. Sometimes, and there are dozens of ways to denature ethanol, methanol is added to ethanol. This makes it poisonous. Methanol is highly poisonous and is rather readily absorbed through the skin while ethanol is only moderately poisonous and not as easily absorbed. Consuming methanol will lead to blindness, convulsions and death at a fairly low level of consumption. Methanol is also more flammable than ethanol. It is therefore not a good substitute for denatured alcohol.

Chemically methanol has 1 carbon, ethanol has 2 carbons and isopopyl alcohol has 3 carbons. Flammability goes down with increasing carbon content because volatility also goes down with increasing carbon content.

I know that methanol is very corrosive in regards to some rubber and to aluminum. We'd have to coat the injection system and the intake manifold of the dragster at the end of the day to prevent it from corroding with WD-40. The fuel tank was aluminum, but hard anodized inside and out, so there was no corrosion. IIRC we used Stainless for the fuel line and the fuel pump was rated for use with methanol. We didn't have to worry about a rubber fuel line because the motor was solidly mounted to the chassis - no rubber mounts.