would using soda water be beneficial for plants? since it has co2 dissolved into the water. just wondering.

You can use carbonated water.No soda though just plain jane carbonated water you can foilage feed with it light misting be careful thought as plants use it during lights on and misting with lights on can be dangerous to the plant and you.Raise the lights when you do it and dont let mist hit a hot bulb or it will exploded.

the gas is bad! dont breathe it or you could get drain bamage

carbonated water O.o
Is Aquafina carbonated? I would imagine not eh? Well were do i get carbonated water and just how effective IS this method?

Spraying soda water on a plant isn't nearly as effective as just making sure you have good ventilation in your grow space.

The CO2 in a litre of soda water, about 5 grams worth, if efficiently conducted to the plant, would supply it for few hours depending on plant size.

Serious application of CO2 requires either combustion type gas generators for large 'warehouse' or glasshouse size ops or in smaller ops, a tank of CO2 with a regulator, in a well-sealed room with a gas/exhaust blower controller, requiring airconditioning in most cases as well. Accurate delivery of CO2 and total atmospheric control in the op are essential for best effect.

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Get a harvest every 2 weeks - A batch of clones in rockwool - Al B. Gone

I never saw carbonated water give off gas dude.
Peace

If you shake a bottle of carbonated water it will pressurize and eventually explode if the bottle cannot take its pressure it developed in that process. We make soda water at my work and we mix it from a tank of Co2.
Yes it does let Gas out from what ive seen. Id like to experiment with this a little more.

Might be due to the fact that CO2 is colourless, odorless and tasteless (@ STP).

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Get a harvest every 2 weeks - A batch of clones in rockwool - Al B. Gone

Plastic soft drink bottles are designed to withstand a pressure of 10 atmospheres (~150psi). CO2 in soft drink usually only exerts a force of about 2 atmospheres before the cap is removed, no matter how much you shake the bottle.

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Get a harvest every 2 weeks - A batch of clones in rockwool - Al B. Gone

how the fuck do you guys know so much about plastic bottles???

I need to go to college ha!