| A Coolant/Water Question for the Chemists in the Group [message #340111] |
Tue, 15 January 2019 06:45  |
bobby5832708
Messages: 237
Registered: November 2006
Location: Winter Springs FL
Karma: 3
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Living in Florida, I have a dehumidifier running during the winter months both in the house and in the GMC and so have a seemingly endless supply of 'distilled' water. I would guess that the water that comes off the dehumidifier is like the distilled water that I would buy in the store in that there are no minerals in it.
Question: Assuming I use fresh recently collected dehumidifier water and that the dehumidifier has an air filter to trap airborne contaminates, is it safe to use that water for batteries and to dilute coolant?
Bob Heller
2017 Winnebago 29VE
Winter Springs FL
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| Re: [GMCnet] A Coolant/Water Question for the Chemists in the Group [message #340112 is a reply to message #340111] |
Tue, 15 January 2019 07:21  |
Jim Miller
Messages: 501
Registered: March 2008
Karma: 10
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On Jan 15, 2019, at 7:45 AM, Bob Heller wrote:
> Question: Assuming I use fresh recently collected dehumidifier water and that the dehumidifier has an air filter to trap airborne contaminates, is it
> safe to use that water for batteries and to dilute coolant?
I have pondered this same question myself. I think there is a possibility of metallic ions in the water from the materials in the evaporator coil - namely aluminum and copper. On the other hand I tend to think that those surfaces would develop an oxidation layer from exposure to water and air and thus protect the water from picking anything up. I know from other experience that an aluminum oxide surface layer is tenacious. If anyone has a conductivity meter we could get an answer.
In my precious metal refining I have a need for distilled water in some critical operations and so I buy the $0.90/gallon distilled water at the store for that purpose. For other less critical operations - washing, rinsing, diluting for filtering - I use dehumidifier water.
Other than metallic ions I would only expect to find biological contamination from molds and other flora growing in the dehumidifier catch pan and tank but these would not be a factor in your original question.
I think it would be perfectly OK to use dehumidifier water to dilute coolant but for my batteries I’ll stick with distilled.
I am interested to see what the chemists have to say on this matter.
—Jim
Jim Miller
1977 Eleganza
1977 Royale
Hamilton, OH
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Jim Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
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| Re: [GMCnet] A Coolant/Water Question for the Chemists in the Group [message #340114 is a reply to message #340111] |
Tue, 15 January 2019 08:20 |
k2gkk
Messages: 4452
Registered: November 2009
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I am not a chemist or other scientist, but I'd be worried about bacteria and/or mold picked up during the dehumidification process.
D C "Mac" Macdonald
Amateur Radio K2GKK
Since 30 November '53
USAF and FAA, Retired
Member GMCMI & Classics
Oklahoma City, OK
"The Money Pit"
TZE166V101966
________________________________
From: Gmclist on behalf of Bob Heller
Sent: Tuesday, January 15, 2019 06:45
To: gmclist@list.gmcnet.org
Subject: [GMCnet] A Coolant/Water Question for the Chemists in the Group
Living in Florida, I have a dehumidifier running during the winter months both in the house and in the GMC and so have a seemingly endless supply of
'distilled' water. I would guess that the water that comes off the dehumidifier is like the distilled water that I would buy in the store in that
there are no minerals in it.
Question: Assuming I use fresh recently collected dehumidifier water and that the dehumidifier has an air filter to trap airborne contaminates, is it
safe to use that water for batteries and to dilute coolant?
--
Bob Heller
1974 X-Canyonlands 26ft
Original 455 exc for timing chain,
Rockwell intake, valve covers. 145k miles.
Winter Springs FL
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| Re: A Coolant/Water Question for the Chemists in the Group [message #340116 is a reply to message #340111] |
Tue, 15 January 2019 10:55 |
77Royale
Messages: 461
Registered: June 2014
Location: Mid Michigan
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Not a chemist either. But, distilled water around here is running about a buck a gallon..
Think about every liquid the coach needs or uses. That has to be the cheapest fluid outside of the tap water I put in the fresh tank for the dishes and showers.
Mobil 1 ATF = 40 bucks a gallon
Washer solvent 2.70 a gallon
The list goes on.
I'd honestly save the humidifier water for the house plants, the lawn, maybe the clothes iron, make ice cubes with it that your Not going to drink.
Wash the lawn mower or garden tools with it.
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
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| Re: A Coolant/Water Question for the Chemists in the Group [message #340119 is a reply to message #340111] |
Tue, 15 January 2019 13:40 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
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While several have said that distilled water is cheap enough and that might be, but where I live, it would be 8 miles away if it is there at all. Most of the places I might go have deionized water "for all distilled water uses".
Well folks, I am a steam engineer and I can tell you that deionized is not the same as distilled. At one of the power plants that I worked at they had a massive deionization system that they used to provide feed water to the make-up feed water evaporator (still).
Fortunately, in my barn shop there is no drain, so the dehumidifier out there drains into a full size polyethylene drum.
Now, if Emery (aka JerryW) comes back and says that this is not a good idea, I'll take that to heart.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: A Coolant/Water Question for the Chemists in the Group [message #340120 is a reply to message #340111] |
Tue, 15 January 2019 14:30 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
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In our convention business about 10 years back I started seeing a new type of stand up water cooler being set up in hotel ballrooms, no water jug or water connection. You got it, it was a dehumidifier disguised as a water cooler./ hot tap dispenser. I'm assuming the water went through a charcoal filter before being served. But knowing how filthy our equipment cooling fan filters were after a few days in a ballroom, needing soap and water to clean the foam media, I never had the nerve to taste it. My friend just bought a table top water distillery for coffee maker and humidifier supply. Output is a steady drip just under a stream and lots of hot air comes out of the fan from the top vent. Works great but not sure about the kW costs guessing about 8 amp draw, I'll check tag next time.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] A Coolant/Water Question for the Chemists in the Group [message #340137 is a reply to message #340133] |
Thu, 17 January 2019 13:05 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
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Water purity is measured in Megaohms, Distilled isn't very pure, DI water can be insanely pure and thus corrosive enough to etch stainless.
I use distilled in my radiators, cause it's cheap and radiators are a pain to replace and expensive
________________________________
From: Gmclist on behalf of Chris Tyler
Sent: Wednesday, January 16, 2019 7:18 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] A Coolant/Water Question for the Chemists in the Group
I have yet to be convinced distilled water is nessesary or a real advantage in cooling systems. Batteries are another story.
But for the negligible cost? Why not...
--
76 Glenbrook
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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