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DIY CO KIT

S

Sathish

Seedling
Joined
19 Dec 2018
Messages
12
Location
Godalming, Surrey
Hi All,

So I have been looking to invest in a CO2 Kit and whilst browsing found the following on Aliexpress for 90 GPB with 12V solenoid and diffuser.

Looks to be of high quality but time will tell. It has a prefilter module on the regulator section. All I have to do is is mix the Citric Acid and Baking Soda and then we have CO2 :)

20190122-115001-1.jpg


Any one else tested such a set-up?

Thanks
 
Looks like a serious DIY kit.. :) What's the pressure rating on the safety valve?

If it can take quite some pressure and if the pressure can be regulated than putting it on a heating mat at 25°C would help keeping the yeast optimaly active. Even better would be inside a temperatur controlled cabinet
 
Bit bloomin expensive for extremely unreliable CO2 generation. Should have asked here to be warned off before wasting your pennies....

I get 2Kg CO2 for £10, that lasts me 3 months on 180litre tank.

If sodium bicarbonate cost £2 per 100gr (Ebay price) that will produce 55gr CO2 (calculate or google it) + £1 for 100gr citric acid. that is £3 for 55gr of CO2 compared to 2000gr for £10 -> 55gr for 27p. So about 10 times more expensive than a fire extinguisher.

Link to 1gr of bicarbonate produces 0.55gr of CO2.
https://chemistry.stackexchange.com...ng-soda-citric-acid-water-co2-how-much-though

And what is all that waffle about 30kg pressure. Kg is a mass (or weight) not pressure ? So 30bar safety valve venting into your room when the solenoid is off ??? Any noise when doing so ??? Any smell of acid or bicarbonate ?

Sorry but not really a very useful product.

Anyway let us know how you get on, please.
 
ian_m said:
Bit bloomin expensive for extremely unreliable CO2 generation. Should have asked here to be warned off before wasting your pennies....

I get 2Kg CO2 for £10, that lasts me 3 months on 180litre tank.

If sodium bicarbonate cost £2 per 100gr (Ebay price) that will produce 55gr CO2 (calculate or google it) + £1 for 100gr citric acid. that is £3 for 55gr of CO2 compared to 2000gr for £10 -> 55gr for 27p. So about 10 times more expensive than a fire extinguisher.

Link to 1gr of bicarbonate produces 0.55gr of CO2.
https://chemistry.stackexchange.com...ng-soda-citric-acid-water-co2-how-much-though

And what is all that waffle about 30kg pressure. Kg is a mass (or weight) not pressure ? So 30bar safety valve venting into your room when the solenoid is off ??? Any noise when doing so ??? Any smell of acid or bicarbonate ?

Sorry but not really a very useful product.

Anyway let us know how you get on, please.
Click to expand...

Thanks, good advise. Haven't tried is a yet but will update on how it goes. Will be using it on 60 litre tanks. As mentioned only time will tell :)
 
DIY co2 sugar and yeast, i can get sugar at 0,85$/kg here, and yeast you don't need much, not expensive either, like baker's yeast. It can be used for a 20-30G tank. It is simple, however it is true it is not as reliable as pressurized. However i had a pressurised system with Milwaukee regulator and reliable is a kind word for it.

In my city in Quebec co2 cylinders refill are not cheap, so i think of returning to diy co2 sugar/yeast.

Michel.
 
micheljq said:
however it is true it is not as reliable as pressurized.
Click to expand...

Not intirely.. :) We had Greenfinger2 and he started out with DIY CO² and achieved remarkable results...

https://www.ukaps.org/forum/search/19352083/

The thread still excists, i kinda forgot which scape it exactly was, it is in the search query above and it can't hurt to read all his threads. Matter a fact they are a joy and very educative to read all..

Anyway he kinda prooved that diy co² reliability is all about the consistancy of husbandry in the method and not in the method itself.. :thumbup:

I never tried never will and to be honest i don't think i would succeed, i lak in will power.
 
Update: So I have this DIY Kit running for 24/7 at 1 BPS in my 60L Tank. I didn't connect the solenoid intentionally. The unit is solidly built and valve adjustment is spot on. No smells or noise to report.
The 100g Bicarb + 100g Citric Acid has lasted 7 days.
I paid £14 for 2KG Bicarb/Citric Acid via Amazon Prime, could have got it cheaper but was impatient.
At the current rate, 2KG/Bicarb/Citric Acid @ 400g per month, so should last me around +- 5 months if I run it 24/7. Longer if I only run it during lighting period. Pretty cost efficient in my view for my usage, even if i increase to 2BPS.

Going to buy another unit.
 
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