water analysis HELP NEEDED

[inreplyavalon]

Greetings.

I am trying to interpret the breakdown of Calcium and Magnesium in my tap water.
I obtained the info from my Utility provider and it came in MILLIGRAMS.
I then learned that to convert this to Milliliters I use this formula:
Mg/specific gravity=Ml

Let me know if i am off here please.

So for Calcium I was given:
11.9mg/l DIVIDED by 1.55(specific gravity)=7.68 ml / L
I think i carry over the L. That seems pretty high that equals about 30.72 ml per gallon.
Anyone know if my math is correct? And how does that get converted into ppm or can it?

For Mag i got:
2.27mg/L Divided by 1.738=1.3 ml/l so about 5.2 ml/g

Thanks for your help folks. I am trying to figure out whether to break out my old RO unit. peas

 

[Mitch Connor]

Wait.. You have an R.O. but you aren't using it?

Screw the tap water.

 

[Guest 18340]

I have tried looking at the water analysis my city provides and I can't decipher it either.
When in doubt, use the ro water.

 

[inreplyavalon]

Thanks for the help folks, or at least for the opinions.

Using RO water is a hugely wasteful method of growing. For every gallon purified with most RO units, 2 gallons are sent down the waste tube. Water is not a renewable resource.

Thats is why i want to use my tap water. Anyone else have any thoughts?

 

[oldgrayhair]

You can't waste water, period. You can waste energy purifying it, which is why RO is THE choice of purification due to the fact there is no power needed other than water pressure.

We are a closed system here in our atmosphere. All water is recycled many times over.

I won't get into the fact that we have all drank the water extracted from the urine of all the animals that have roamed the earth for millions of years.

Being that not everyone "gets it" about the waste water coming from the drain line of the RO, remember that water has plenty of uses if the main concern is the THOUGHT of wasting that water.

You can wash clothes with it, dishes, pets and houses and boats. You can water your outdoor gardens, your yard. Then you get a few more uses out of the water before you pass it on to the next generation.

peace - ogh

 

[Guest 18340]

From what I've seen, the way municipalities break down the water analysis on their sites', if you want a true reading of what your water contains then you'll have to send out a sample to a lab.
My town, for example, doesnt even list mineral content. Hell, it's not even up to date! My town still shows a 2008 report.

 

[inreplyavalon]

OGH thanks for the reply. Though its semantics to me. I should have specified...DRINKING WATER. 97% of the earths water is Sea water and undrinkable. Less than one percent is drinkable. When you flush your toilet that water becomes undrinkable. Unless of course we go to great lengths using excessive energy to purify it. Which our technology and infrastructure cannot endlessly do.
I do like the idea of capturing that waste water and using it for other things though.

Evl my water company is the same way. The numbers i got were from 2008 but they did give a breakdown of contaminants. I do agree the best way to find out would be to send a sample to a lab.

My tap water is usually between 100-150 ppms and i am just trying to figure out what that may be

 

[Guest 18340]

Shit bro, my tap is consistently 300 ppm, Imho you'll be golden with 100-150 ppm water. I'd pay for water like that. Wait, I do pay for it, I go to the Glacier RO water machine in front of my local Winndixie and pay $1.50 for 5gal of ro water and mix it with my tap to get 100ppm. (Thats why an RO system is in my future).
I do understand your quest though, Goodluck.

 

[crownedsparrow]

interesting thread.
Does anyone know which of these "water machine" companies dont treat their water with chlorine? or does everyone that uses these water fill up machines just leave the water out for a day? Also does chlorinated water have to be opened in order for effective chlorine removal?
I liek your idea, evlme2.

 

[Guest 18340]

interesting thread.
Does anyone know which of these "water machine" companies dont treat their water with chlorine? or does everyone that uses these water fill up machines just leave the water out for a day? Also does chlorinated water have to be opened in order for effective chlorine removal?
I liek your idea, evlme2.

**I accidentally hit the edit button on your post, sorry. I'm still getting used to the Mod features**

If I'm not mistaken, those Glacier water machines don't treat the water, they're just a big RO machine that also uses UV to disinfect.
They're hooked up to municipal water lines.

 

[bobdobalina420]

http://www.hydrofarm.com/enlarge.php?itemid=7667http://www.hydrofarm.com/pb_detail.php?itemid=7667#- I just found this the other day, you can send in a sample and they will let you know whats up.

 

[its.always.420]

http://www.hydrofarm.com/pb_detail.php?itemid=7667#- I just found this the other day, you can send in a sample and they will let you know whats up.

I'm pretty sure that's for testing nutrient levels (not just EC, but what the actual NPK and micronute makeup is), not what your starting water content is. They may not test for lead, arsenic, etc; all things that come out in the first stage of R/O - carbon. I may be wrong though.
Besides, that $40 is a pretty decent amount toward the price of a good R/O machine. Or it could get you well over 100 gallons of pure R/O water at the grocery store. Better off saving your money, IMO.

 

[Avenger]

Why are you trying to convert milligrams to milliliters?

mG/L is equivelent to ppm

Water with 11.9ppm calcium and 2.27ppm magnesium is perfectly suited for hydroponics or use as irrigation water.