hey guys i had this idea of filling up plastic bottles with co2 from a diy co2 system, then attaching airline/co2 tubing from the top of a co2 filled bottle to a 'magnetic co2 solenoid valve' (link = http://www.ebay.com.au/itm/CO2-magnetic-Valve-Solenoid-Valve-Night-Time-Cut-Off-for-Fish-Tank-Aquarium-/371050521301?pt=AU_Pet_Supplies&hash=item566455a2d5&_uhb=1) so that i can control when the co2 goes into my tank. do you think this would work????
Co2 Project. Do You Think It Will Work??????????
#1
Posted 03 May 2014 - 01:05 PM
#2
Posted 03 May 2014 - 01:38 PM
I don't think there will be enough pressure in your plastic co2 bottles for this to work.
You will need some way of forcing the co2 out, like having a breather hole in the co2 bottle and attaching the outlet tube into a venturi.
Edited by Niz, 03 May 2014 - 01:39 PM.
#3
Posted 03 May 2014 - 07:29 PM
#4
Posted 03 May 2014 - 07:49 PM
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#5
Posted 03 May 2014 - 07:54 PM
#6
Posted 04 May 2014 - 02:38 AM
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#7
Posted 04 May 2014 - 08:34 AM
My solution is to vent the CO2 into another bottle which displaces water into a third bottle for storage. The overnight CO2 can then be used the next day.
20140504_081720_resized.jpg 94.17KB 3 downloads
Took a bit of trial and error to get it right, but it works fine now. I couldn't be fussed with a solenoid, so it's just an alarm set on my phone each morning and evening to remind me to switch it
Edited by Labcat, 04 May 2014 - 08:41 AM.
#8
Posted 04 May 2014 - 09:05 AM
Nice work lab cat
#9
Posted 04 May 2014 - 09:29 AM
I wonder if you could use a bladder in the system that Labcat has made. Kind of like how the pump bladders work for people who use water tanks for their house. Kind of like this:
Although I suppose that this is starting to defeat the point of having the low tech system...
#10
Posted 04 May 2014 - 01:30 PM
@Michael this link might be of interest to you, if you have not seen it already.
http://www.qsl.net/w...ria/diyco2.html
- malawiman85 and BristledOne like this
#11
Posted 05 May 2014 - 02:22 PM
Even though I've done some DIY CO2 stuff before that was a good read rsevs3, thanks.
Michael, one thing I was wondering is are you planning on using yeast or citric acid for your CO2 setup? Yeast is the most common way, but keeps producing day or night so a solenoid is a quick way to create a "Yeast bomb" where the pressure will build and reach a point where either the cap blows off, tubing gets blown off or the worst possibility is the whole bottle ruptures and sprays your room with yeast, sugar and the alcohol by-product.
Any time I've done it I tend to just vent CO2 at night, but I do like the sound of labcats idea as a way of still capturing the CO2 but not causing a pressure buildup
#12
Posted 05 May 2014 - 02:58 PM
The other advantage is that the byproduct from the yeast can be utilized else where.
#13
Posted 05 May 2014 - 06:05 PM
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