Diy electro valve??? - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 10-18-2014, 08:05 PM Thread Starter
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Diy electro valve???

Hi
I have diy co2 for my full planted tank for shrimps.i diffuse it by venturi of diy canister filter.i was thinking to make something same co2 electro valve.to connect timer and make my diy co2 automatic.
Something open co2 when light turn on and close it when light turn off.
Is any idea?
Many tnx
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post #2 of 8 (permalink) Old 10-18-2014, 08:15 PM
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You want to use a solenoid which is a valve that opens when electricity runs through it and closes when it stops.
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post #3 of 8 (permalink) Old 10-18-2014, 08:51 PM
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You'd want to use a 3 way solenoid. You don't want to stop the flow of diy co2. Doing so can result in a explosion or nasty mess. The best you can hope for is to redirect the gas out of the system instead of stopping if.
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post #4 of 8 (permalink) Old 10-18-2014, 08:53 PM
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Quote:
Originally Posted by Solcielo lawrencia View Post
You want to use a solenoid which is a valve that opens when electricity runs through it and closes when it stops.

I would do the opposite since its a DIY co2 set up.

A DIY co2 set up is going to be making co2 24/7 and DIY setups are not built to hold a build up of co2 the pressure could break the DIY serial snd you would have a mess on your hands.

Don't put put the solenoid on the line from the DIY co2 to the tank. Add a second line from the DIY co2 to the open air this will give the co2 that the DIY setup continues to make a place to go when you don't want the co2 going into the tank. Put the solenoid on the line that goes to the open air. When the power is on the solenoid will close and force the co2 into the tank when the power is off the solenoid will be open and let the co2 into the air instead of into the tank. Then just have the tank lights and the plug powering the solenoid both plugged into a power strip that is plugged into the timer.
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post #5 of 8 (permalink) Old 10-18-2014, 09:03 PM
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You don't say if your diy co2 is with yeast or the citric acid / baking soda method. If using the acid /base one, you can totally use a solenoid with it.
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post #6 of 8 (permalink) Old 10-18-2014, 09:20 PM Thread Starter
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Many many tnx
I use yeast.is citric better?i keep shrimps
Is solenoid expensive?i was thinking to use three of them.one of them open when light turn on and co2 go in.when light turn of two other open and co2 close.one for co2 to go air.and other for oxiginize
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post #7 of 8 (permalink) Old 10-18-2014, 09:45 PM
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Originally Posted by Kavak View Post
i was thinking to use three of them.one of them open when light turn on and co2 go in.when light turn of two other open and co2 close.one for co2 to go air.and other for oxiginize

Just one to the open air should be enough. With that open enough pressure won't be able to build up to push any co2 into the tank.
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post #8 of 8 (permalink) Old 10-18-2014, 09:48 PM Thread Starter
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But i want to connect it to canister filter venturi.so it would vacume co2 easily.isnt right?also i need to enter o2 after light turn of.so air should conect to venturi
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