Water - Mr. Grow It

This topic has 8 replies, 3 voices, and was last updated 1 year, 3 months ago by sativalover.

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July 30, 2023 at 12:32 am #2588

Bradley3389
Participant

Alright so I’m new to dwc but I know the quality of water makes a huge difference. My water out the tap ec is .02 with a ph of 6.8-7.2 and ppm is barely double digits and is single digits a lot. How should I go about raising my levels, I’m using technoflora recipe for success, and going by the chart it says ec should be 2 at 1000 ppm and a ph oh 6.2, I follow it to a T and I’m setting at ph of 6.8 an ec of .02 and ppm of 150-180. What is going on, this is driving me nuckin futs!

August 10, 2023 at 2:55 pm #2611

mrgrowit
Keymaster

Sorry for the lack of response while I was on vacation. The general pH range for DWC is 5.5-6.5, with many staying in the 5.8-6.2 range. So your pH of 6.8 is high. I’m not sure I fully understand the other stuff you mention; so are you saying you mix up the nutrients into water and the pH doesn’t drop at all? Do you have any pH Down on hand? How much water are you mixing into and how many ML of each bottle?

August 10, 2023 at 3:31 pm #2616

Bradley3389
Participant

Out of the tap the pH is around 8, tds is anywhere from 8-20, ec is 0.01. I’m using gh maxigrow and bloom city calmag at the moment of course calmag before the grow, but I can load the plant up with a very strong dose and the pH will drop of course but the tds ppm is still below 300 and ec is still 0.0q and maybe ,02, I am only in a about a gallon of water at the moment until the roots stretch a lil more so I can put in a bigger container

August 10, 2023 at 3:38 pm #2617

Bradley3389
Participant

I nearly killed her night before last, my stoned dumb ass used the wrong side of the measuring cup of the maxigrow and nearly burnt her up, so she been sitting in just water and calmag since night before last, that picture is from right now so she looks a million times better, when should the maxigrow go back in slowly, I’m worried about starting her back too soon, this was her 30 mins after overfeeding in the solution

August 11, 2023 at 3:25 pm #2621

mrgrowit
Keymaster

I hope she recovers for ya! The mix you mention, was that a full dose? Half dose? or what? Also, what week on the feeding schedule are you feeding at?

Generally people will keep their reservoir within a certain EC/PPM range and adjust the dosage so it’s in that range. Are you aiming for specific ranges for the different stages of plant growth?

August 11, 2023 at 4:37 pm #2625

Bradley3389
Participant

That’s at full dose and I just follow what the bag says lol I been doing 3/4 dose and I don’t have any real set parameters other than making sure the pH is 5.8-6.4 or at least as absolutely close as possible. I’m not gonna worry too much about my ec or ppm right now cause she seems to be thriving this morning so maybe I’m ok for now but I’m sure I’ll have to start keeping a watch on it later I’m sure. Ment to say hope the vacation was nice. Have a good en

August 13, 2023 at 10:37 am #2631

sativalover
Participant

my water is also around 8+

General information from the internet – start your reservoir/bucket with only water. Add half strength of your preferred feed. Let sit for minimum 2 hours. 8 hours if it’s possible. Add ph up or ph down depending on what’s necessary to achieve the desired ph level. Check water temperature. If possible add an air stone to your reservoir (if you use 1).

increase feed if you feel it’s necessary. Your plants won’t take up full strength unless your conditions are optimal.

August 13, 2023 at 2:19 pm #2635

mrgrowit
Keymaster

Starting with a half dose is a good idea. Some prefer to start with even less, a 1/4 dose instead. Many will mix up the nutrients and then pH adjust without waiting 2-8 hours like you read on the internet. Waiting 2-8 hours before adding pH up/down is an over-precautious method.

August 14, 2023 at 9:04 am #2638

sativalover
Participant

in General people let the water sit to adjust to the room temperature and evaporate impurities

the reason they add the ph just before feeding is to allow ph fluctuations whilst the water is sitting

with regards to feed strength – if your humidity is high and you’re in the vegetative stage, half strength is fine. Most of the water uptake will be from the air.

hope I don’t sound like i know it all
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