Nute & Reverse Osmosis questions For Hydro

Incredible4Mr2E

Well-Known Member
i bought RO when i started. from walmart. as a noob to hydro, knowing that your water is not a problem is worth the money . you'll have other issues to deal with .

i slowly went to 1/2 ro, 1/2 well to all well water now.
The waste doesn’t bother me honestly, I don’t pay for the water. I know that’s kind of scummy to say, but it is what it is lol. I just want to get something that will get both chlorine and chloramine and lower the TDS. I don’t care if it doesn’t get everything completely out besides the chlorine and chloramine, all I’m really worried about. The system uses 35 gallons and I really don’t want to fill buckets at the spring lol
 

Incredible4Mr2E

Well-Known Member
i bought RO when i started. from walmart. as a noob to hydro, knowing that your water is not a problem is worth the money . you'll have other issues to deal with .

i slowly went to 1/2 ro, 1/2 well to all well water now.
Lucky being on a well lol. Why did you completely cut the ro out? I’ve been reading people mix 3/4 ro and 1/4 well/spring water.
 

Major Blazer

Well-Known Member
i bought RO when i started. from walmart. as a noob to hydro, knowing that your water is not a problem is worth the money . you'll have other issues to deal with .

i slowly went to 1/2 ro, 1/2 well to all well water now.
This is sage advice.

After moving I started my first new grow very recently and I also decided to switch to Jacks. After 24hrs I checked the res and noticed significant turbidity so I flushed and mixed with straight RO this time. Moral of the story, I really don't know if water was the issue. Maybe my pH down went bad (it took far more than I'd ever had to use in the past to adjust only a little) or maybe it is the water. I bought a new pH down yesterday and next nutrient change I planned on doing 50/50 ro/tap. I've never had problems with tap before but this is a new rodeo so we'll see.
 

Incredible4Mr2E

Well-Known Member
This is sage advice.

After moving I started my first new grow very recently and I also decided to switch to Jacks. After 24hrs I checked the res and noticed significant turbidity so I flushed and mixed with straight RO this time. Moral of the story, I really don't know if water was the issue. Maybe my pH down went bad (it took far more than I'd ever had to use in the past to adjust only a little) or maybe it is the water. I bought a new pH down yesterday and next nutrient change I planned on doing 50/50 ro/tap. I've never had problems with tap before but this is a new rodeo so we'll see.
I’m wondering how it’s going to go for my grow. I’m thinking I’ll do half and half but my water is around 800. I honestly don’t know what I should do.
 

Wastei

Well-Known Member
Good idea with the kiddie pool, I know people who use pond liner.
I don't know that I would shell it out for an R.O. system, a simple dechlorinator should handle it.
Yes on the cal-mag, especially if using R.O. Some companies claim they have enough mixed in, claiming it to be a micro nutrient when, imo, calcium is your 4th macro nute. I ran my DWC with 4-5 ml cal-mag per gallon.
Care to elaborate? There's about 25% available elemental Calcium in the total feed with Jacks321. I don't understand the reason to want to add more and worsen the already good nutrient ratios of Ca:Mg?

Sure you have "calimagic" with calcium sulfate instead of nitrate which may help stabilize the pH. But there's more Calcium than needed in Jacks, especially if you run hydro.

You're better of spending your money on potassium silicate IMO.
 

Incredible4Mr2E

Well-Known Member
is that 800ppm ? (can't be that high) or 0.8 EC?

i assume EC and that is really, really high. you have almost no choice but to buy an RO unit I think
I’m sorry man, he did say .8 ppm. I asked if he knew the TDS or EC and told him I was getting advice on a reef tank about everything and asked if that was close to 800 PPM and he said he had no idea. Now, you have to understand, I live in a bum fuck nowhere town in upstate NY. We don’t have the most reliable / acknowledgeable supervisor here. I know the gentleman and he is pretty obvious to anything but they only use chlorine and got a reading of .8 ppm something (roll eyes). We have incredibly, and I mean incredibly hard, hard water. You have to scrub everything every couple months or you get a buildup in your tub and sinks. My folks live a couple miles away on a well and have a softener. It doesn’t really help that much. I feel like I need like two pre sediment and carbon filters on the cheap before I even let it get to the RO setup lol. I just think in my situation I’d be better starting out closer to zero and figuring out what needs to be added as I go.
 

rkymtnman

Well-Known Member
I’m sorry man, he did say .8 ppm. I asked if he knew the TDS or EC and told him I was getting advice on a reef tank about everything and asked if that was close to 800 PPM and he said he had no idea. Now, you have to understand, I live in a bum fuck nowhere town in upstate NY. We don’t have the most reliable / acknowledgeable supervisor here. I know the gentleman and he is pretty obvious to anything but they only use chlorine and got a reading of .8 ppm something (roll eyes). We have incredibly, and I mean incredibly hard, hard water. You have to scrub everything every couple months or you get a buildup in your tub and sinks. My folks live a couple miles away on a well and have a softener. It doesn’t really help that much. I feel like I need like two pre sediment and carbon filters on the cheap before I even let it get to the RO setup lol. I just think in my situation I’d be better starting out closer to zero and figuring out what needs to be added as I go.
phew! ok, 0.8 is way better!!!! you can go up to 5ppm and still be safe for plants/humans.

how many gallons do you think you'll be using roughly in a week? would buying RO in 5 gal refillable jugs be an option?
 

Incredible4Mr2E

Well-Known Member
is that 800ppm ? (can't be that high) or 0.8 EC?

i assume EC and that is really, really high. you have almost no choice but to buy an RO unit I think
That’s what my buddy was getting a reading out of his sink water. So he gave me a meter reading and the supervisor gave me a .8 something. I’m going to say considering my buddy has a bluelab MONGUA guardian and seems reliable, I’ll take his reading as what it is.
 

Johiem

Well-Known Member
Care to elaborate? There's about 25% available elemental Calcium in the total feed with Jacks321. I don't understand the reason to want to add more and worsen the already good nutrient ratios of Ca:Mg?

Sure you have "calimagic" with calcium sulfate instead of nitrate which may help stabilize the pH. But there's more Calcium than needed in Jacks, especially if you run hydro.

You're better of spending your money on potassium silicate IMO.
Didn't say anything about "Jack's 321" never used it, don't know anything about it.

My advice is based off the use of R.O. I would advise Anyone using R.O. to supplement calcium and magnesium. If Jack's calcium is that high then, no, I don't think any would be needed.
 

Incredible4Mr2E

Well-Known Member
phew! ok, 0.8 is way better!!!! you can go up to 5ppm and still be safe for plants/humans.

how many gallons do you think you'll be using roughly in a week? would buying RO in 5 gal refillable jugs be an option?
System will use 30 gallons to fill just under half way on the net pots. It’s two craftsman 10 gallon totes and a 30 gallon control bucket. I won’t be using that much but I really would rather just buy a RO setup for the convenience.
 

Incredible4Mr2E

Well-Known Member
phew! ok, 0.8 is way better!!!! you can go up to 5ppm and still be safe for plants/humans.

how many gallons do you think you'll be using roughly in a week? would buying RO in 5 gal refillable jugs be an option?
So do you think the hydro logic stealth-RO150 would be enough o combat 800 ppm and chlorine? Should I use prefilters too?
 

Johiem

Well-Known Member
Have you considered trying to catch the rain? I have buckets around the house to catch runoff from my roof. I then wick the water to and through a carbon filter. I've gotten as low as 49 ppm doing this. No chlorine Or chlorimides. It's about as pure as one can get, and without the investment.
 

MustGro

Well-Known Member
If I understand it right his friend told him the water is 800 PPM and the chlorine is .8PPM, but I'm jumping in here late. If your water is truly 800 PPM @Incredible4Mr2E then there's not much chance of using it in hydro without dropping that number.
I just switched to Jack's in my 35 gallon reservoir though and my tap water is a very cannabis friendly 55PPM. I added nothing to my last grow but Jack's 321, Walmart epsom salts and Cyco PH adjusters. If you get really pure water I don't believe you will need anything more than I used.
Definitely get yourself an EC/TDS meter. I had great luck with a $40 Com-80 for 3 years now.
 
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