$20 Cool Tube

Gastanker

Gastanker

Well-Known Member
$13 vase from walmart.

That's 6" ducting.


Glass cutter was $5. I made a rig to hold the cutter and vase so I got a nice even etch. I then slowly poured boiling water over the line to warm the glass and then switched to cool water to cause a stress fracture at which point the bottom just fell off. Worked beautifully and gave me a nice clean break.



This is the edge I cut. No sanding and it's still pretty smooth.



A bit of bailing wire and we are ready to go.

 
xxEMOxx

xxEMOxx

Well-Known Member
What size are some of those pots?! I notice everything is in earlyish flower, but some of those to me look like 1 or so gallons...... also how much did this help your temp drop and such in the room?!
 
Gastanker

Gastanker

Well-Known Member
Those are all still in veg - they were under a HPS as I just moved and couldn't find my MH. They are now under a MH. 3 of them are in 5 gallon aero pots and the other is in a 10 gallon aero pot - the plants are larger than they look in the picture. My temps dropped around 15 degrees but what is more important is how close I can get the plants to the light - easily a good 6-10 inches.
 
hopeyougotadutch

hopeyougotadutch

Well-Known Member
Unsure of the wattage you are using but, will this work with a 600 watt hps? And did you ever have any cracking problems with the glass due to heat from the light?
 
Gastanker

Gastanker

Well-Known Member
I'm running a 600w in there and have tried both MH and HPS bulbs and it fits both with plenty of room - fits my 1000w HPS as well.

This is NOT tempered glass to my knowledge so I was slightly worried about stress fractures. Luckily the glass is very thick and the break I made was clean so there is no point from which a fracture should start. Being hot shouldn't cause fracturing either as the glass is heated slowly and evenly and allowed to cool the same way. I'm a bit careful with cool water around it though; cold water with the hot glass could cause problems.
 
hopeyougotadutch

hopeyougotadutch

Well-Known Member
Okay, cool. I was getting worried because cool tubes are entirely to expensive, and a 600 you def. need to cool. Could you tell me the dimensions of your vase? I have one that looks exactly like yours, just want to be sure.
 
Jakabok Botch

Jakabok Botch

Well-Known Member
Gastanker said:
Looks like it's a 6" diameter, 14 3/4" long and 1/4" thick glass.

I used the hot water cold water method shown here:

[video=youtube;sFXngPx3w3M]http://www.youtube.com/watch?v=sFXngPx3w3M[/video]
Click to expand...
i like that.....took forever to get to it...but was cool...
 
goten

goten

Well-Known Member
That`s very good my man

im surprised how easily that process is

Iv never fucked with cooltubes before because of the prices

Do you have any pics of how you went about attaching it to you light and all ?

+rep

Edit

no rep for now for you , i gotta spread some more around first
 
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