Author Topic: DIY Glycol Chiller Rust  (Read 382 times)

Offline BaseWerks Brewing

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DIY Glycol Chiller Rust
« on: July 22, 2021, 03:18:31 am »
Hi everyone,

I made a DIY glycol chiller out of a old cooler and a A/C unit a few years back.  The condenser on the AC unit is rusting and now my glycol liquid is a nasty orange.  Is there anything I can do to prevent the rust from getting worse?  Do I just make a fresh batch of glycol solution and run it till it dies?

Thanks
Andy K
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Offline goose

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Re: DIY Glycol Chiller Rust
« Reply #1 on: July 22, 2021, 02:30:49 pm »
What kind of water are you using to dilute the glycol?  If it has chlorine in it that could be the problem.
Goose Steingass
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Offline BaseWerks Brewing

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Re: DIY Glycol Chiller Rust
« Reply #2 on: July 22, 2021, 08:08:56 pm »
I'm pretty sure I used distilled water a few years ago when I filled it up.  I may have topped it off with a bit of tap water though at some point which would have a had a little chlorine.
Andy K
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Offline goose

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Re: DIY Glycol Chiller Rust
« Reply #3 on: August 03, 2021, 08:48:06 pm »
I would use distilled water or RO water to dilute the glycol.  That way you could be sure there was nothing in the water that could corrode your system.

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Goose Steingass
Wooster, OH
Society of Akron Area Zymurgists (SAAZ)
Wayne County Brew Club
Mansfield Brew Club
BJCP Certified
AHA Governing Committee Member

Offline denny

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Re: DIY Glycol Chiller Rust
« Reply #4 on: August 03, 2021, 08:57:53 pm »
I would use distilled water or RO water to dilute the glycol.  That way you could be sure there was nothing in the water that could corrode your system.

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My GF chiller specifically recommends distilled.
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