aren't you guys concerned about mixing metals and corrosion plus the longer and higher the run/loop I can't see standard pumps ddc or D5s handling what amounts to torture for very long. You must be using other type pumps right?

Here are some "improvements" that I did.  First here is a piece of 1/8" thick lexan that I cut as something to keep the nozzle centered.  Trying to prevent as much water from running down the sides as possible. 

Lastly, this is a test to see how much condensation will actually collect in the bottom to even warrant the drainplug.  Its only 6 feet of hose I think, but I can double that at any time.  I have extra hose.  I would like to pick up more, and vent the bong out the window... and draw in air from the outside to super cool this thing...

Sorry for the crappy quality, took the picture this morning @ 5 am on my camera phone. 

Good idea for centering the spray head. I had been thinking about some kind of bracket in there. I think I will hold off on the dryer hose, at first anyway but let us know how well it works. It will probably be next week before i can get anything going with mine, just too much on the plate this weekend. Ex will have the kids next week so I should be able to get it up and running, or at least sputtering. I wonder what a casual observer would think if they peeked into that room lolz.

I forgot this picture:

yea, just a lexan sheet.

I fired up the bong and temps are sub ambient.  7°F below ambient, which tonight puts the bong temps @ 45.9°F. 
*cough* the windows are open and ambient is 52.7°F  *cough*

nateman_doo

ok, so we just proved that we can collect condensation

 
Now it just needs to be refined.
 
Is there a reason that the liquid looks like urine?  Do you smoke nate?

Now you know why I chose to design that part using pvc. That way it won't collect like it did in your dryer duct tubing.

nateman_doo

i think dryer duct would be better being metal more would condense on it.  i think?

btw... it consumes a gallon a day of the prestone

U got an inside contact at Autozone? Ouchie.

heh... Its prestone windshield washer fluid (<$3.00 a gallon), which is mainly alcohol, which evaporates quicker.  I vented the bong outside so there really wasn't an issue.  Plus I had all the windows open anyway.  humidity still around the 20% mark or so.

I want to try to make a mini bong tower (18"to 24") using mister nozzles. Maybe even take the one 1/2" tube from your PC hardware and split it to 4 tiny misters into tiny little tubes all to one reservoir.

You get a much smaller droplets, and you wont need a tower 3+ feet in height. You could probably get away with just a couple of inches with 4 or 5 tiny misters.

http://www.drsfostersmith...p;ci_sku=0070059000000

That one is quite large though, but you get the idea.


Another idea would be to use a car air filter on the intake fan. Since they keep moisture out, I would assume it would reverse in keeping moisture IN, which would allow cool air to flow in, but the moisture not to escape. This would cut down on refills a lot, and would make sure your room doesnt because a sauna. You would have to seal off your res though.


http://www.autopartswareh...gan=1&apwidU9LZ18T

I got an idea for you guys to think about.

I was thinking about turbo systems for sleds and bikes and what not. Generally turbos for sleds have a intercooler to cool the air coming into the motor as the turbo heats up the air coming in. With out a intercooler most sled motors would blow up as they can't get rid of the heat fast enough.

So, heres my idea for you.

Use your 7 foot bong.  Find a rad maybe a very small car rad off a honda or something. or whatever you have I guess with big inlets and exausts if possible.

Pump air into the rad from the bong and then pump the air back out of the rad back into the bong.

Your using a rad like water cooling, but instead you cooling the air inside. It works for turbos. why not for water cooling. Put a fan blowing through the rad to cool the air passing through it and then also the fans blowing in the bong to push air through the rad.

That should work. like an intercooler. and you should in theroy loose no water this way in your bong, but still cool the air down.

If you wanted to get creative. you could put the rad outside for more effect/

What do you think? heck use a 3 120mm fan rad with the 1/2 barb fittings and put 3 120mm fans blowing slow in it. and have a fan somehow blowing air into the rad and one sucking out of it inline.. sure theres a way 2 do this.

alcohol is going to evaporate quicker than water for sure. I live in Florida avg humidity is 70% or more and I loose 1/2" of water in my pool per week and even more when the humidity is lower so you have that working against you too. The good news is with the added humidity static electricity goes away.  A note about cost I surely would not be using this kid of setup if it cost three bucks a day in fluid that sounds expensive to me considering what it's for.

 @ Rudster.
I like the mister head idea, maybe for a box setup. Thanks for the link.  Looks like it would hit the sides of a pipe unless you could redirect spray, which should be doable. Low speed fans would apply for sure.

I haven't checked on acrylic, but 45.00 for 4 feet: rotflcopter. I was thinking about maybe a sheet of something clear and cut your own panels out of it to make a box. A co-worker suggested an old aquarium.  But hey, a clear tower could work, if you could find a decent price for the pipe.

Darrell's talk of intercoolers got me thinking about air cycle cooling.

This is totally not plausible or practical for this application, but is still neat.  Air cycle cooling is very commonly used in transport aircraft.  The process takes turbine engine bleed air which can be hundreds of degrees celcius and cools it down to below ambient temperature.  The process is neat because it is similar to vapor cycle cooling (air conditioning), except for the refridgerant in this situation is the air.  So the input and output and the "refridgerant" (or its closest counterpart in this situation) is the air.

http://en.wikipedia.org/wiki/Air_cycle_machine

What does the heart of an air cycle machine look like?  Well, you've seen similar before.  ;)

It's just a centrifugal impeller compressor on one side which further compresses the bleed air.  Then on the other side, there is a radial inflow turbine on the other side which drives the compressor.  It is an amazing machine since the air (a very large volume of it) is what powers the machine and also is the final product.  The other amazing thing about it is that the air must pass through the radial inflow turbine in order to turn the compressor.  Why that is amazing is because as it turns the compressor (and thus esentially powers itself) it also is doing work in order to turn the compressor and this work it is doing is extracting the heat energy from the air and is therefor further cooling the final product.
 
If you look at a glowing turbocharger on a suped up engine, you will see that the manifold leading up to the turbocharger and the radial inflow turbine side of the turbocharger glows red hot, but the exhaust pipe leading away from the turbocharger and out the tailpipe is barely glowing and is much cooler.  This is because heat is extracted from the air in order to turn the radial inflow turbine.  This ACM (Air Cycle Machine) is using that to its advantage to power itself and also to further cool the air which is the final product.
 

 
How cool would it be to have THAT sitting next to your computer?