It is kind of extravagant way to water but has anyone ever tried to do this with Perrier or Pelligrino or similar mineral water for their young figs to get them going?

Topo Chico!

I don't see how this would help. The CO2 in the water is not great for the roots, not to mention that minerals in water make it harder to uptake. I would be happy to be corrected, but I see only negatives to doing this.

I agree with Anton. If anything, set up a rain water barrel and use this water as it is much, much better for your plants. 

Someone has to ask.....why would you consider this?

Is this supposed to be akin to playing mozart for your plants...I hear beating and cussing them works better. :)

Threatening to "cut" them works almost as well as doing it.

"Although it is a pricier option than tap water, watering plants with sparkling water may be one of the best-kept secrets to boosting plant growth. According to a study conducted at Colorado University Boulder, carbonated water makes plants grow faster and makes green plants grow greener. Sparkling water contains dissolved nutrients that are easily absorbed by the plants' root system. Nutrients in sparkling water may include magnesium, calcium, carbon, hydrogen, oxygen, sodium, sulfur, phosphorus and potassium."

-http://homeguides.sfgate.com/water-flowers-sparkling-water-37520.html

Conditions

Carbonated water will only work for plants that can grow moderately well in alkaline soil. Plants that are adapted to acidity will find the raise in pH levels considerably dangerous as their roots become unable to absorb nutrients and water. Alternating between flat water and carbonated can help to reduce the negative effects.

Benefits

Gardeners who water their plants with soda water will find that these plants grow faster over a 10-day period than plants watered in a typical manner. This speedy growth, along with having healthier looking leaves and stalks, is due to the various nutrients that soda water provides.

Drawbacks

The biggest drawback to growing a plant with carbonated water is the unsustainable raise in nutrients. Unlike fertilizer, the nutrients found in soda water are absorbed very quickly and are not retained by the soil. This means the plant will require more exposure as it begins to grow. The more carbonated water added to the soil, the higher the pH levels will become, stripping the calcium and making the soil unsuitable for plant life.

Further Consequences

As plants lose their ability to absorb nutrients due to the change in pH levels, they become weaker. They may be discolored and their growth rate will suddenly decline. This makes plants more susceptible to insect or fungal threats. Plants with a nutrient deficiency will be less able to fight off such infestations or infections and, consequently, may die.

- http://www.gardenguides.com/131605-effect-carbonated-water-plants.html

So this is a great way to water, until it kills the plants... Doesn't sound like all that great a secret.

You have to carefully match the water to the fig.  Perrier will only nourish French figs and refuse to associate with other figs.  If you water an American fig with French water the plant will dry out.  :)

Thanks for the thoughts and reply so far fellows. I plan to try it on my young rooted cuttings alternating flat Reverse osmosis with the fancy naturally carbonated mountain spring water to see what it does. I did pour some in three different cuttings in cups and it did seem to perk them up quite a bit. The soil is on the alkaline side not acid. I did use rain water on my earlier rooted cuttings and it worked fine but now I am out of it so I would want to experiment with some mineral water only just to get them going until they are large enough to be up potted for now. And yes for fun; only the French cultivars get Perrier and the Italian figs get only San Pelligrino and the American figs get only Crystal Geyser Lol :)

carbonation blocks the oxygen intake, you do the math. :)

No, figs like tap water (actually my house water is filtered and they seem to like it).  I don't think it will help any, and probably will hurt.  But experiments are always welcome.

Well, if carbonation is bad for our teeth due to CO2 turning into acid, then just imagine what that would do to fine roots.  Instead, try watering with a very weak 1/4th dilution of kelp/seaweed extract in filtered water.  

Thanks for the kelp/seaweed suggestion. I will have to look for that and try it.

Mountain Valley Spring Water, is a legendary American brand of water that is unmatched in terms of quality, Ph and purity. Try that instead. It is easily the best water money can buy in the United States. I have it delivered for my toddlers to avoid the poisonous flouride in the water. Being serious. Try it.

https://www.mountainvalleyspring.com/

Sounds like a winner , I have to check that brand of water out . Noticed it was from Arizona but have never seen it around my area yet. Thanks for your reply!

Not sure about the carbonated water.. but, if you are watering with tap water, I would get a carbon filter.. heck, get a whole house carbon filter.  It will not demineralize the water.. but it will remove the chlorine.  Chlorine messes with the microbes in the soil.. and that is bad.  If your cuttings are rooted.. try finding someone via Craigslist or local Facebook the raises rabbits.  Make a tea from the dechlorinated water and the rabbit poop.  It's a great natural pick me up that will not burn the plants and there are no "salts" from commercial fertilizers that will build up in the soil.  Also, the seaweed and/or fish fertilizer are great for making tea as well.

Great idea! I'm using R.O. 3M brand reverse osmosis drinking water at the moment. I have a friend that shelters discarded rabbits and have asked him for their poop since it does not burn the new roots. Will also try to get some fish emulsion or sea kelp extra if my local store has it. Thanks for your post.

RO not only removes chlorine.. but also removes essential minerals.. not sure that's a good idea.