Soda machine chiller?

Fitt, You have not hijacked anything enjoying all the input so I can make an informed decision on how to proceed!
 
KEITHMC.....my honest opinion is to put the soda machine back together and sell it on Ebay . You get a couple hundred for it and buy a chiller. It would be much more efficiant since this is what it is built for . Hell ' my bar is almost done....maybe i'll buy the thing off ya :) .
 
waoh hold up there you aint gettin my coke machine it is fully functional and at the end of this project it will still be functional!
 
LMAO...........I thought it was just a Pepsi machine ....... For a CoaCola machine i might just make you the titanium coil myself ......
 
Well ok you got me it was originally a Pepsi but I am vending coke just cant find a beverage company that will come off a dang sticker with out a $100 purchase lol
 
<a href=showthread.php?s=&postid=7140840#post7140840 target=_blank>Originally posted</a> by fitti69
If you really want to go with stainless tubing make sure it is high grade and non ferrous { a magnet wont stick } . If it is not , you will just be wasting money and kicking yourself later . Lower grade AKA magnetic stainless has to much iron in it , atleast i wouldnt want it in my tank . This is why the aquarium chiller industry uses titanium for most of there applications . High grade stainless is strong as hell , and stands up to corrosion . Only problem is it has a low tensil strength , splits and tears easy when you try to form it . Titanium on the other hand , its soft and malible . Also has better corosion resistance . That "titanium" color is a layer of corosion that helps protect the metal . So i guess what i am saying is , if you can find the SS tubing on the shelf it probally wont work for you . The only reall way to bend the stuff in tube form is through hydroforming .

so now i have read your first post a second time.

this is not a problem with ss coroding. and i keep saying this. do not use ss in a chiller using anything other than pure water would be my best suggestion.

BUT... if you are using pure water PLEASE tell me why using ss is a bad idea?

that aside
ti alloy thermal conductivity is 20.6 W/m.K @ 500c
316 ss is 21.5 W/m.K @ 500c

so you would do yourself no better. i would also say they are about same.

actually you have it kind of backwards ti is rather ductile until its made into an alloy. in its purest state ti has a higher thermal conductivity than 316. i did not compare ti to iron.

it is these alloys (ti3al2.5v or grade 9) that i was referencing. they are easily purchased for a low price on ebay. i found 1/2"x36" for $19.95.

but that is another project. one that does not involve pure water.

keith has great idea. the efficiency may be off a bit. but overall the addition of a $20 6' ss flex gas line, with its ribbed sides, could increase that efficiency as well as free up some sump space.
 
For those looking for a cheaper chiller alternative:

a local club member did his own chiller and works GREAT. I've been to his place and seen the results. Cost him a little more than $200 if I remember right. You can contact Travis on the Sioux Falls Area Aquarium Society forum (here on RC) if you have any other questions pertaining to his setup.

DIY chiller
 
I had a hot & cool water dispenser about a meter next to my tank.
It come with a small bar fridge on below part of it that I never use.
I thinking to use the idea from OZ Reef, run a vinyl tube from sump in to it.
URL:
http://ozreef.org/diy_plans/temperature_control/chiller.html
chiller_diagram.gif


But the inlet water is from the excess flow out from return pump instead of put in another pump as like below drawing. If the flow too fast, maybe add a small valve between the PVC pipe and the connector to vinyl tube.
diycooling1xj.jpg


I believe the bath of water in your soda machine is much chilly than my small bar fridge. I guess running few circle of vinyl tube inside the water bath then back to sump is good enough. That is more simple if it work for you.
 
The "small bar fridge" will not be anywhere near powerful enough to chill your tank, unless of course it is a nano.

Bean
 
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