Where can you buy a line blower?

[Poconos]

I question the statement about the mix of AF & water, not saying it's wrong. I just checked a jug of RV antifreeze and it stated burst protection down to -50F undiluted. Just means it won't freeze solid. I also checked an old jug of ethylene glycol (green auto stuff) and it's vague about the concentrations. They stated a 50-50 mix is 'best overall' protection whatever that means. Then on a separate chart they list the concentrations for 40, 50, and 60% and the freeze and boiling points are still dropping & climbing at the 60% level. So...I always used the RV stuff straight, undiluted.
Al

[brittmer]

I question the statement about the mix of AF & water, not saying it's wrong. I just checked a jug of RV antifreeze and it stated burst protection down to -50F undiluted. Just means it won't freeze solid. I also checked an old jug of ethylene glycol (green auto stuff) and it's vague about the concentrations. They stated a 50-50 mix is 'best overall' protection whatever that means. Then on a separate chart they list the concentrations for 40, 50, and 60% and the freeze and boiling points are still dropping & climbing at the 60% level. So...I always used the RV stuff straight, undiluted.
Al

Good point Poconos. I never have used the RV stuff, just the antifreeze from the pool company. I have always heard that you need to have a mixture of water and antifreeze or it will freeze. I assumed that went for all antifreeze. Well...you know what happens when you assume....

[cleancloths]

I always thought that the 50/50 mix of ethylene glycol was based on an optimization of freeze and boiling protection, but that the maximum freeze protection took place at 70% antifreeze 30% water.

[Poconos]

The 70% could very well be true. Chemistry classes were way too long ago. I do remember something about the freezing point of a mixture being lower than either of the two alone but don't remember anything else. Maybe ChemGeek will see this and chime in.
Al

[waste]

Hate to interupt the discussion of what% antifreeze to use (I blow the lines clear and add ~ 1/2 gal), but the original ? was where to get a good vac/blower. The answer, Grangers (I've seen them up and down the east coast)

[KirstenHW]

antifreeze will freeze if you don't mix water with it.

Whaaat? I never heard that before!!