By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy
Accept
Using different kind of water
daymzorstarted grow question 5 years ago
So i Have a reef tank, this demands +40L of RODI(Demineralised water) water change weekly
Waster water is over 80L
Can i use waste water for my plants? it will contain some elements tho
Can i use RODI? is there any advantage or some kind?
Total noob on that, thx for sharin
like
NobodysBudsanswered grow question 5 years ago
my tap water is ~250ppm... i don't have issues.
depends on what those elements are and what concentration they will be...
some stuff is good to have.. just like in hard water. you will need more precise information to make an educated decisions, or you can test it out with one plant for an entire grow -- important in case of slow buildup to observe for a long enough period of time.
RO? reverse osmosis? people use it all the time. again, some fertilizers may expect you to mix with tap water, which is more often alkaline.. just make sure pH and such comes out. you may need some additional Ca, Mg, Fe or even Cl, but it's not for certain... you'll ahve to watch and see.. your fertilzer labels will be of great use to make a good guess.
chasv77answered grow question 5 years ago
IMO, too much effort to make "heavy" water usable for plants. I have an RO machine, and just throw the waste water on the grass.
I also have 2 final filters. One to demineralize, and one to add the right amount of cal-mag, to improve taste.
1 like
Complain
Experimentgreenanswered grow question 5 years ago
Hello
Rodi water is ok for plants but you'll need to add nutrients back in, especially the micronutrients. Rodi filtration removes all those minerals etc that are common to people using tap water etc. So watch for deficiencies.
1 like
Complain
Similar Grow Questions
Solved
AutoflowersSucK
Pollen?Does anyone have any male's or pollen they would like to donate in exchange for the resulting seeds? I want to breed a stronger variety into the Lemon Kush i have.
Other. General questions
10 months ago
2
1
Solved
Aleatoric
Sativa or Indica Dominant Characteristics - Plant ID?Alluding once again to my sloppy method: Which is which?
One is Strawberry Gorilla Auto, (Sativa dom) and one is Banana Purple Punch Auto(Indica dom). Do I have them backward? Tried to keep seeds straight. Based on leaf shape? THX!
Week 6
Other. General questions
10 months ago
6
4
Solved
CornerBud
Am I on a harvest window?Am i on a harvest window?
77 days old autoflower, up to this point is personal taste or still there ways to go?
I majorly see milky and a few ambers trichomes, correct?
Those white pistils are due to the foxtailing, so is not a good metric.
Other. General questions
10 months ago
3
Solved
hweixd
Is this little guy worth fighting for?Cotyledons asymmetrical, burnt tip, yellow spots
Leaves asymmetrical, burnt tip
Stem is very straight, seems sturdy, height... about 3cm, in 1 week.
It was my first time and so i made mistakes... overfed it, pH9 ... but i solved those... will he survive?
Other. General questions
10 months ago
2
2
Solved
Lew420
Bad idea?Will a mars hydro TS1000 be too strong for a 60x60x140cm tent?
I have been using a TS600 and TS1000 in tandem in a tent 4x too big for the light level, I have been growing strong and tasty buds but with low yields so downsizing my tent size to maximise the light.Other. General questions
Setup. Lighting
10 months ago
3
3
Solved
LeroyDagobert91
Is this ready??? autoflowerWeek 15 almost 16, it smells very strong and the leaves are dying
trichomes are all milky cloudy, but no sign of amber trichomes, flowers are too heavy and stems can't support the weight
It's been almost a month since it smelled very strong
I did what I could for the pictures
Other. General questions
a year ago
5
3
Solved
sirstickyfingers
Should I wait to flip?Since I just transplanted and amended my soil using gaia green amendments and geared them towards veg. I know the general rule is to allow 2 weeks for them organic amendments to break down, will that deter me from flipping to flower next week or should I wait if so how long?
Week 7
Other. General questions
10 months ago
3
2
Solved
DeepWaterGrower
Beneficial bacteria in DWC - Tips and adviceHi guys, I grow in DWC and I would like to take the difficulty one step further. It doesn't matter the brand, but I would like to know if you start using beneficial bacteria from dry seed, if I can watering the clay with it, if solution expired faster and stuff like that...10 months ago
19
6
Solved
Sit_Ubu_Sit_Good_Dog
What is shelf life of silver thiosulfate ("STS") in practice?I know it is recommended to use within 30days of mixing final solution.
However, what "works" can often be different from the recommendations. Has anyone used an STS solution they made after 2months? 6 months? How did it go?Other. General questions
10 months ago
1
1
Solved
jeannoTapin
F44: dozens of gnats stucked on buds & sugar leavesHey,
I noticed dozens of gnats stucked on sugar leaves and buds trichomes/resin... I tried to pick them by hand but there are too many.
I saw articles about bud washing which seems to be a good thing except for higher mold risk.
Would it be the only way to smoke bug free weed?
Other. Bugs
Other. General questions
9 months ago
4
Solved
Sonic_Y
Flushing with RO Water (EC 0,0) or tap water (EC 0,8)?Hi.
I think, it's 1,5-2 weeks before they are ready to harvest.
Tell me, if you see something else in the pics. :)
I want to flush them now every 2 days with only water.
I have the opportunity of RO Water (EC 0,0).
Should i use the RO water or normal tap water (EC 0,8)?
Week 11
Other. General questions
9 months ago
8
5
Solved
JSanchezz
Humidity while drying Safe?currently on vacation for another 48 hours. My dry room has no climate control, but it is very stable.
As you can see in the charts, my temperature has risen from 15.8°+rh56.6 to 16.1c rh61.2 in 72h
If I continue to interpolate this, I ill end up at approx. 65%
Ist this critical
Other. General questions
8 months ago
3