ppms

when calculating ppms of food do you factor in the ppms of the ph and epsom salt?

Not sure what you mean exactly.......

You check the ph of the water after you have added your nutrients to desired level (ppm/EC).
Do not adjust the oh of the water prior to adding your nutrients.

Once you have the desired ppm/EC ( nutrient level ) , you check the ph and adjust to around 5.8 with most hydro grows.

Hope this clears things up

Indefinately
" let there be Green in 2016 "

Yeah like indefinitely said, your question doesn't really make sense. Your ph and ppm are not relative to each other. Add all your salt/nutes to your desired ppm level then ph to your desired level depending on soil or hydro. Keep it simple

I put my nutes in to desired ppm's then I ph the the desire level, but then when I check the ppms again after I add the ph up. it raises the ppms even high then what I had originally wanted. and I want to know if you have to take the raise into consideration?

Tiffay2180 said:

I put my nutes in to desired ppm's then I ph the the desire level, but then when I check the ppms again after I add the ph up. it raises the ppms even high then what I had originally wanted. and I want to know if you have to take the raise into consideration?

Click to expand...

Well it does raise your PPM and personally I mix different products to achieve the ratios I want at or near the pH I want, it's an art really. But if your pH is really low when you start then some of the nutrients you are adding may not be dissolved yet. Ultimately to buffer pH you are adding P/K to your solution it is our goal to limit the amount we add. If you want help let's talk about your nutrients. (I'm harvesting my replies may lag)

1. What type of water is it tap water? What's the starting pH?
2. What phase of growth?
3. What type of medium is this soil?
4. Nutrients and additives?

Second question regarding Epsom salt. This is magnesium and sulphur it definitely raises ppm. I add mg along with calcium at 5:1 ratio.

I'm using tap water. I'm using jacks synthetic nutrients. and just wondering if the ppm increase caused by the ph up could cause burning?

Not generally if you are using reasonable amounts but I've only used a maximum of 7 ml per gallon. You can use another product to help raise pH such as Silica.Two that raise pH Dynagro ProTekt or Silica Blast. I like to use less than recommended if possible but you should add them first in both cases if I remember correctly I use ProTekt you do add it first. Don't exceed the recommended amount per gallon if you need more pH UP now you can add it via pH UP.

Back to pH UP:
There are different products I use GH pH UP which is Potassium Carbonate (K2CO3). There is between 10 to 30% of this in GH pH UP by weight per their MSDS sheet. K2 means 2 of the atoms are Potassium and CO3 is the molecule that makes up carbonate. k2co3 is one part of wood ashes and it is definitely liquid plant food which is highly available to the plant.

Yup, like MeJuana said, it's probably your pH adjuster that's adding PPM to your mix. I know my Phosphates skyrocket when I add too much pH down. Try switching up your Acid or Base to a new type, or start with RO water.