How can you tell if your freshwater tank is truly clean?

[CanoeStream]

Originally Posted by Smokin Camel

Aside from a good flushing, consider using non-toxic antifreeze like propyleneglycol.

at_wanderer, antifreeze (glycol) isn't very toxic to humans if it's been flushed through real well. I would probably fill the tank twice, run the pump through the pipes each time and let it drain out the bottom drain. Disposal of glycol might be regulated -- check with an auto garage. RV and auto antifreeze are both glycol products. The RV type is just an FDA purity without other contaminants. Make your coffee with some spring water jugs from the store for the first couple trips in the spring and you'll be fine. I still do dishes right away after de-winterizing.

[2airishuman]

Originally Posted by CanoeStream

... RV and auto antifreeze are both glycol products...

...The RV type is just an FDA purity without other contaminants.

danger, danger will robinson!

proplylene glycol in small amounts is safe for human consumption fda purity has NOTHING to do with it.

ETHYLENE GLYCOL is highly toxic and LETHAL in even small amounts.

most auto antifreeze is ethylene glycol, although some newer/environmentally friendly versions are not.

NEVER NEVER NEVER put ethylene glycol in water lines. don't even leave it outside anywhere.

the sweet aroma and taste attracts pets and children and it WILL KILL THEM.

the humans that survive often rely on dialysis or renal transplant.

no offense canoe stream, but it is REALLY IMPORTANT to STOP using these terms interchangably...

http://www.airforums.com/forums/f462...eze-31973.html

someone is gonna get hurt.

this is an important enough topic to be made a sticky!!!

there really is ONLY one answer on the antifreeze safety issue.

ingestion of ethylene glycol is a medical emergency, period...

Propylene glycol - Wikipedia, the free encyclopedia

Ethylene glycol - Wikipedia, the free encyclopedia

ATSDR - ToxFAQs™: Ethylene Glycol

cheers
2air'

[azflycaster]

I have always know that automotive antifreeze was toxic, but after reading the wiki about it, it is VERY toxic.

However, as little as 30 milliliters (2 tablespoons) can be lethal to adults

Be careful with this stuff! Do not leave any sitting out where children or pets could get to it. A small radiator leak could leave a puddle large enough to kill.

[garry]

And some of us (me) are "very" highly aleragic to propylene glycol.

Garry

[Minnie's Mate]

the sweet aroma and taste attracts pets and children and it WILL KILL THEM

If left spilt on pavement in a puddle, wildlife will be attracted also...and it is toxic to them, too! Be kind to the environment and clean up any spilt anti-freeze.