Indoor recirculating system

AlphaPhase

AlphaPhase

Well-Known Member
Danknstank420 said:
I'm so confused when it comes to ppm and ex what is the difference? Laimens terms pls
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EC is the universal measurement for the amount of salts in water. PPM is a basically a calculation of ec which is portrayed as a number on your ppm meter. The problem with this is there are different ppm meters that use a different scale. Some use a 500 scale and some use a 700 scale.

So 1.0ec on a 500 scale = each .1ec equals 50ppm
and 1.0ec on a 700 scale = each .1ec equals 70ppm

All you need to do is determine what PPM meter you have and use this chart. After a little while you'll figure out what ec your ppm is reading. Hope this helps
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AKGrowAreo

AKGrowAreo

Well-Known Member
A decent meter will measure in EC and then can also show you the PPM conversion on the 500 scale or the 700 scale. I always use the 700 scale.

EC is the measurement of the Electrical Conductivity of the water. This is determined by measuring the amount of salts in the water. The more nutes you add, the more salts in the water.

METER DOES NOT MEASUE THE TRUE PARTS PER MILLION OF WATER IT TAKES THE EC MEASUREMENT AND CONVERTS IT!

PPM or Parts Per Million is a number that your meter estimates by taking the ec number and used one of the following conversions: 1.0 ec = 700 ppm for the 700 scale or 1.0 ec = 500 ppm on the 500 scale.

Hope this helps you grasp the concept and good luck on your grow!!!
 
AKGrowAreo

AKGrowAreo

Well-Known Member
AlphaPhase said:
EC is the universal measurement for the amount of salts in water. PPM is a basically a calculation of ec which is portrayed as a number on your ppm meter. The problem with this is there are different ppm meters that use a different scale. Some use a 500 scale and some use a 700 scale.

So 1.0ec on a 500 scale = each .1ec equals 50ppm
and 1.0ec on a 700 scale = each .1ec equals 70ppm

All you need to do is determine what PPM meter you have and use this chart. After a little while you'll figure out what ec your ppm is reading. Hope this helps
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lol. I was typing my answer while you were posting yours. Intelligent minds think alike I guess. haha

PS my bluelab meter can use ec, or ppm 500 or ppm 700.
 
AlphaPhase

AlphaPhase

Well-Known Member
AKGrowAreo said:
lol. I was typing my answer while you were posting yours. Intelligent minds think alike I guess. haha

PS my bluelab meter can use ec, or ppm 500 or ppm 700.
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lol right on bro :) i wish mine did ec, mine is a 700 scale constant reading Hanna meter, it works well and never breaks but it doesn't have the bells and whistles but extremely accurate. I've always wondered about the blulabs and have heard a lot of good things about them
 
AKGrowAreo

AKGrowAreo

Well-Known Member
AlphaPhase said:
lol right on bro :) i wish mine did ec, mine is a 700 scale constant reading Hanna meter, it works well and never breaks but it doesn't have the bells and whistles but extremely accurate. I've always wondered about the blulabs and have heard a lot of good things about them
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Yeah they work good. My next big investment is the Bluelab PH res monitor and doser. Just kick back and let it do all the work for me ya know, but I need 4 and they are like $400 so I am waiting still...
 
AlphaPhase

AlphaPhase

Well-Known Member
AKGrowAreo said:
Yeah they work good. My next big investment is the Bluelab PH res monitor and doser. Just kick back and let it do all the work for me ya know, but I need 4 and they are like $400 so I am waiting still...
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Man, wouldn't that be awesome, I want those too, i figure my next ph meter I might as well get 1 because my ph meter already costs 200, so an extra 200 is totally worth it, maybe someday :) the tech is crazy nowadays, there's an app for some of the systems where you can dose from your phone!
 
AKGrowAreo

AKGrowAreo

Well-Known Member
AlphaPhase said:
Man, wouldn't that be awesome, I want those too, i figure my next ph meter I might as well get 1 because my ph meter already costs 200, so an extra 200 is totally worth it, maybe someday :) the tech is crazy nowadays, there's an app for some of the systems where you can dose from your phone!
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Yeah the tech is off the chain anymore. I am working with a software developer and an electrical engineer to come up with a pump controller that activates the pumps based on how moist your roots are. I have a bunch of parts on their way here from china that we are gonna start building our prototypes from. Hardest part for me so far has been sourcing out the moisture sensor, but I have a couple ones that could potentially work on the way. Can you imagine how great it would be to be able to select the amount of moisture that your roots get and then just walk away? Dud I hope this pans out!
 
AlphaPhase

AlphaPhase

Well-Known Member
AKGrowAreo said:
Yeah the tech is off the chain anymore. I am working with a software developer and an electrical engineer to come up with a pump controller that activates the pumps based on how moist your roots are. I have a bunch of parts on their way here from china that we are gonna start building our prototypes from. Hardest part for me so far has been sourcing out the moisture sensor, but I have a couple ones that could potentially work on the way. Can you imagine how great it would be to be able to select the amount of moisture that your roots get and then just walk away? Dud I hope this pans out!
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That's possibly the best idea I've ever heard. If you Make a working one, let me test it first! Or buy one first! I need that!
 
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