Thermochill' s New Coolant fluid.

[NaeKuh]

Who is this we. Do you have two heads or something?

I am XS too and you certainly cannot speak for me. No nasties have ever grown in any of my loops and I've been LCing for 4+ years.

All this BS about biologic in the loop is just that: BS.

Use distilled. Use food dye. Profit.

Food dye has not stained any of my acrylic or tubing in the tests I have done.

CD...

There was a thread back a while ago where people were experimenting with dyes b4 mlwood.

They tried food coloring. And most food coloring is composed of one of these:
* Caramel coloring (E150), made from caramelized sugar, used in cola products and also in cosmetics.
* Annatto (E160b), a reddish-orange dye made from the seed of the Achiote.
* A green dye made from chlorella algae (chlorophyll, E140)
* Cochineal, a red dye derived from the cochineal insect, Dactylopius coccus.
* Betanin extracted from beets.
* Turmeric (curcuminoids, E100)
* Saffron (carotenoids, E160a)
* Paprika (E160c)
* Elderberry juice

Most of what is listed can be used by a microbe to grow.
That is why i said it promotes nasty.

The artificial food coloring showed it tends to bond faster to the tubing then the natural ones.
That's why that thread concluded was the food coloring preferred staining the
tubing because it had more area to deposit itself onto, then actually stay suspended in liquid.

And it was preferred to use a straight up chemical DYE, since there was no concern with it being eatable.

And didn't you always use Hydrx??
When did u use straight up food coloring?

i dont trust any premixed coolant... even this one is advertised at biodegradable, and i have a feeling that it's exactly that property of it that causes the stuff to gunk up your blocks. or am i horribly wrong here?

i think its the glycol in the antifreeze portion that's clumping up.