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Old 02-10-2018, 10:17 AM   #505
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James, my suggestion based on my two winter successful experience. I blew lines, extensively, then using winterize kit pumped RV anti freeze throughout including boiler. Then drained it out and put what I drained in the four traps and into the grey and black tanks. Opened the two discharge balves a bit to allow anti freeze to get into the valves. Then when we headed south I opened all low points including Alde and flushed the anti freeze out. Alde says to not run heat with Anti Freeze in the boiler. So, I'd make sure the boiler has nothing in it.
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Old 02-10-2018, 12:56 PM   #506
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Gr8, thx.
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Old 02-10-2018, 03:06 PM   #507
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Just wondering why? Switching out to ethylene glycol?


No the Alde manual states that the glycol should be changed out every two years. I donít need to do it yet but was wondering if anyone knew how to drain the glycol out of the system.
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Old 02-13-2018, 07:17 AM   #508
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ksteve06, I'm going to have it done while at the factory for awning repair and some other things and I've told them I want to watch. Was told no problem. If still curious I'll post what I pick up.
I'm interested to hear how much venting and refilling you'll have to do after they finish.
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Old 02-13-2018, 07:19 AM   #509
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No the Alde manual states that the glycol should be changed out every two years. I donít need to do it yet but was wondering if anyone knew how to drain the glycol out of the system.
Anybody without dogs or kids considered switching to ethylene glycol like the UK?
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Old 02-14-2018, 07:19 AM   #510
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Anybody without dogs or kids considered switching to ethylene glycol like the UK?
Hi

One of the interesting gotcha's is that these bottles contain glycol *plus* other odd items. The other stuff they put in keeps nasty things from happening to the internal workings of the system. One never quite knows if this bottle in the USA has the same odd additives as that bottle in the UK. It's a small risk, but it also is a small savings.

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Old 02-14-2018, 09:05 AM   #511
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Is think as long as it had the aluminum corrosion inhibitor, which automotive radiators use, should be fine?
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Old 02-14-2018, 09:06 AM   #512
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The MSDS I got from Alde matches the CAMCO list exactly, so cost was not the driver. Any ideas which glycol is best heat transfer?
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Old 02-14-2018, 02:18 PM   #513
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The MSDS I got from Alde matches the CAMCO list exactly, so cost was not the driver. Any ideas which glycol is best heat transfer?
I think I'm going to stick with the Alde fluid as it works fine and hest is great.
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Old 02-15-2018, 07:16 AM   #514
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The MSDS I got from Alde matches the CAMCO list exactly, so cost was not the driver. Any ideas which glycol is best heat transfer?
Hi

The MSDS only tells you just so much. There are always items that don't show up on there (they aren't alarming ...).

The water that gets mixed with the glycol does the heavy lifting in terms of heat transfer. Both glycol's are "not so great" compared to it. That's not a knock on glycol. Water is a great material for moving heat. Simple answer if you want the best heat transfer: cut back on the glycol and put more water in the mix.....

To get the exact numbers, you need the specific heat's of the materials (in solution) and the density of the solution. A lot of people only look at the first number. I haven't had enough coffee ( yet ) to dig into all of that. The chemist in the family is working on breakfast. I'd rather not interrupt that process ... Her reply to the question involved the need to unload the dishwasher .... maybe I should look into that

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Old 02-24-2018, 10:53 AM   #515
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Buy aluminum specific anti freeze at auto store. Lots of folks do, most dealers do including Colonial.
Such as PENTOSIN/PENTOFROST NF?

Best regards and safe travels


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Old 02-24-2018, 01:58 PM   #516
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Hey Scott. I was told by an extremely reliable source that as long as it says SAFE FOR ALUMINUM ENGINES, brand will not matter but before you do anything give John in Jackson Center a call and see if they happen to have any Alde brand sitting around. Sometimes they do sometimes they don’t and they can fedex it to you fairly quickly. A few of the dealers may have some as well. I do try to use only Alderete fluid but in a real pinch it won’t matter. Getting the air bled out was the worst part. Some of those relief valves are hard as heck to get to, ya gotta hold your tongue just right.
Just out of curiosity, how low are you?
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Old 02-24-2018, 02:11 PM   #517
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Such as PENTOSIN/PENTOFROST NF?

Best regards and safe travels


Hi

Just to confuse things a bit further -- when Colonial did the Alde fill on my trailer they most certainly did *not* use generic stuff. What they poured in came out of several bottles with "Alde" on them.

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Old 02-24-2018, 04:38 PM   #518
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They didn’t put any fluid at all in mine. I had to learn the hard way. I do recommend using Alde brand, however, in a pinch, when desperate, another brand would be safe. I have since topped off with only Adle. I always have 3 bottles on board. I bet by the time I got all the air out the original fluid that I used was a very small amount of generic stuff.
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