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Reverse Osmosis System? Any opinions?

unregistered190

Senior
Veteran
Curious...did a search and didn't find any recent posts.....so......

Who here uses a RO unit? What brand......and are you happy with it?



If adding nutrients to the water anyway what is the advantage of using RO water vs tap water?

Thanks in advance
 

PuReKnOwLeDgE

Licensed Grower
ICMag Donor
Veteran
The advantage is knowing EXACTLY what you are giving your plants. Some water sources have really high ppms and are high in some mineral content that can throw things out of whack. Water is pretty damn important to plants, no reason to not be starting with the best. I use a 6 stage double de-ionized 150gpd unit, I love it, it spits out 4ppm or less.
 

unregistered190

Senior
Veteran
Thanks for the quick response........I kind of expected that answer. I have hard water here (lots of residue in a humidifier) but have no idea what all that stuff is.

Makes sense!
 

PuReKnOwLeDgE

Licensed Grower
ICMag Donor
Veteran
No problem. It is salt building up from evaporation, plants don't like to many salts :) My girlfriend sometimes mentions that around here, the plants drink the best, eat the best, and breath the best, I like it that way. She might be jealous haha. We used to sweat it out to the oldies in the summer while the plants had ac, and also made our living area 10 degrees hotter...
 

k-grower

Member
another ro water user here :tiphat:
i use it in mister raise rh, topping reservoir on add back water, final flush, making ice hash, to make some real god cafe :yummy:

there are very few nutrients exist on market what have made for ro-water use - one is ghe soft formula but thats only one i have found, most of nutrients have made keeping eye on that fact, that most of the water available have deposits most of all calcium and magnesium and thus the nutrient manufactures don´t add them on full doses on the nutrient recipe. so if you wont start fresh whit tap water you probably need to buy suppliments cal-mg to avoid problems in growth what usually start middle or start of flowering.
personally i don´t want pay for mg and calcium if it´s almost free of charge from tap.
 
Hey dude!
I just bought an R/O system, have only used it for 2 days so i cant give you a full review.
Been growin about 8 times, indoors and out. Always when i grew indoors my leaves got a little strange, the edges were pointing up like a canoe (not caused by heat).
But when i grew outdoors this summer my leaves looked perfect!! The mostly got rainwater. Not a single symptom.
The tapwater in my "new" home has a ph of 8, a ppm of 130.. doesnt sound so bad: but after 3 weeks from sowing (indoors) my plants wilted up and died!! The composition of my water is fucked, probably too much ca.

The ppm of rainwater in my area is 10 (or even less). If you wanna be able to use water as similar as possible to rain, RO is the way to go!

People say they can grow great pot with their tap, i have done it too in other areas, but the fact is: they are just lucky!
 

Douglas.Curtis

Autistic Diplomat in Training
The advantage is knowing EXACTLY what you are giving your plants. Some water sources have really high ppms and are high in some mineral content that can throw things out of whack. Water is pretty damn important to plants, no reason to not be starting with the best. I use a 6 stage double de-ionized 150gpd unit, I love it, it spits out 4ppm or less.

Exactly...

  • Using R/O means your plants will never suck up excess/unwanted minerals, from just your water source.
  • Using R/O means you won't have to change your setup, if you move to a new water supply.
  • Using R/O means your nutrient mix is exactly as you mixed it.
Current unit is a stealth r/o 100 and I've been using r/o for hydroponic cannabis for 15 years.
 
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