• Home
  • Forums
  • Site Happenings
  • Introduce Yourself
  • Indoor grow room build watering solutions

Indoor grow room build watering solutions

  • Thread starter Thread starter cfears
  • Start date Start date Nov 14, 2023
  • Tagged users Tagged users None

Indoor grow room build watering solutions

cfears Nov 14, 2023 15 Replies 2,958 Views
Page 1 of 1 · Replies 1–16 of 16
1
C

cfears

Posts
3
Reactions
1
Joined
Nov 14, 2023
Points
3
Nov 14, 2023
#1
I have a whole house salt water softener system. What should I use for watering? Bypass water softener with City water? Reverse osmosis for plants?
 
Reactions: cannafarmer420
Quote Reply

ArtfulCodger

Posts
2,080
Reactions
4,174
Joined
Apr 23, 2021
Points
263
Nov 14, 2023
#2
cfears said:
I have a whole house salt water softener system. What should I use for watering? Bypass water softener with City water? Reverse osmosis for plants?
Click to expand...
It will depend on the contents of your tap water, and what your water softener adds. The very best way to know for sure is to have your water tested. Alternatively, many municipalities publish their testing data. Or, you can stick a PPM/EC pen into your tap and softened water and see what it reads. Opinions vary, but one rule of thumb is that tap is OK under 200 ppms. My tap runs around 80, and I've grown with it for years without issue.
 
Reactions: Chem77 and cfears
Quote Reply

cannafarmer420

Supporter
🐼 🚀 living soil
Posts
5,564
Reactions
19,540
Joined
Dec 5, 2022
Points
313
Nov 14, 2023
#3
cfears said:
I have a whole house salt water softener system. What should I use for watering? Bypass water softener with City water? Reverse osmosis for plants?
Click to expand...
They use salt to soften water so don't use that
 
Quote Reply

Natep

Posts
1,982
Reactions
3,500
Joined
May 6, 2023
Points
263
Nov 14, 2023
#4
cfears said:
I have a whole house salt water softener system. What should I use for watering? Bypass water softener with City water? Reverse osmosis for plants?
Click to expand...
You need to bypass the water softener and install an ro. This is especially important if you are going the hydro route. If you are growing organic you can get away with a carbon filter only. The salt from your softener will kill everything.
 
Reactions: 3cats and cfears
Quote Reply

3cats

Posts
316
Reactions
508
Joined
Sep 6, 2023
Points
93
Nov 14, 2023
#5
Natep said:
You need to bypass the water softener and install an ro. This is especially important if you are going the hydro route. If you are growing organic you can get away with a carbon filter only. The salt from your softener will kill everything.
Click to expand...
But its okay to drink? If you're not drinking salted water so its fine for your plants. I don't think you understand how they work. The salt is used as a flushing agent through a carbon filter to clean it and the water is filtered through the carbon filter not the salt. It does a back wash 3 -4 times a week to clean the carbon filter
 
Reactions: BB22
Quote Reply
Z

Zill

Posts
1,480
Reactions
2,174
Joined
Oct 1, 2022
Points
263
Nov 15, 2023
#6
Water is softened using mixed cation/ anion bed resins. Once the beads have sucked ions out of the water the resins need to be regenerated. That is done with by exchanging bound ions with NaCL at high NaCL concentrations. Larger ions knock off the Na during the “softening”.

If you drink the water and not suffer the plant will do the same. Or, as you mention bypasss the unit.
 
Reactions: cfears
Quote Reply
C

cfears

Posts
3
Reactions
1
Joined
Nov 14, 2023
Points
3
Nov 15, 2023
#7
3cats said:
But its okay to drink? If you're not drinking salted water so its fine for your plants. I don't think you understand how they work. The salt is used as a flushing agent through a carbon filter to clean it and the water is filtered through the carbon filter not the salt. It does a back wash 3 -4 times a week to clean the carbon filter
Click to expand...
Our softened water tastes no salt. But high tds will collect in the soil, destroying the soil over time
 
Quote Reply

Natep

Posts
1,982
Reactions
3,500
Joined
May 6, 2023
Points
263
Nov 15, 2023
#8
3cats said:
But its okay to drink? If you're not drinking salted water so its fine for your plants. I don't think you understand how they work. The salt is used as a flushing agent through a carbon filter to clean it and the water is filtered through the carbon filter not the salt. It does a back wash 3 -4 times a week to clean the carbon filter
Click to expand...
I’m a journeyman plumber for 23 years. I have a pretty good idea how a water softener and RO system work. Reguardless of how the brine flushed the carbon. It leaves behind sodium levels in the water. Yes you can drink you can also eat salt.
 
Reactions: cfears
Quote Reply
C

cfears

Posts
3
Reactions
1
Joined
Nov 14, 2023
Points
3
Nov 15, 2023
#9
Natep said:
I’m a journeyman plumber for 23 years. I have a pretty good idea how a water softener and RO system work. Reguardless of how the brine flushed the carbon. It leaves behind sodium levels in the water. Yes you can drink you can also eat salt
Click to expand...

Natep said:
I was told by the Softener installer the salt not filtered will destroy the soil eventually?
Click to expand...
 
Quote Reply

3cats

Posts
316
Reactions
508
Joined
Sep 6, 2023
Points
93
Nov 15, 2023
#10
Natep said:
I’m a journeyman plumber for 23 years. I have a pretty good idea how a water softener and RO system work. Reguardless of how the brine flushed the carbon. It leaves behind sodium levels in the water. Yes you can drink you can also eat salt.
Click to expand...

Natep said:
I’m a journeyman plumber for 23 years. I have a pretty good idea how a water softener and RO system work. Reguardless of how the brine flushed the carbon. It leaves behind sodium levels in the water. Yes you can drink you can also eat salt.
Click to expand...
I've been growing pot for 25 + years and until about 2 years ago we had a water conditioner adding bags of salt to a big blue 50 gallon barrel. I grow in promix, our water isn't / wasn't salted either were my plants.

Eventually it may cause a build up but it seems fine for 1 full grow 4-5 months. I still get salt on my bags from nutrients and I guess the water but were not talking house plants that live for years.

I only use my soil once then buy more when I'm out. I use GH flora clean in my auto pot system that helps with salt build up from my nutrients It may help with too much salt in your water as well.
 
Reactions: cfears
Quote Reply

Natep

Posts
1,982
Reactions
3,500
Joined
May 6, 2023
Points
263
Nov 16, 2023
#11
3cats said:
I've been growing pot for 25 + years and until about 2 years ago we had a water conditioner adding bags of salt to a big blue 50 gallon barrel. I grow in promix, our water isn't / wasn't salted either were my plants.

Eventually it may cause a build up but it seems fine for 1 full grow 4-5 months. I still get salt on my bags from nutrients and I guess the water but were not talking house plants that live for years.

I only use my soil once then buy more when I'm out. I use GH flora clean in my auto pot system that helps with salt build up from my nutrients It may help with too much salt in your water as well.
Click to expand...
I’ve used my soil for the last 4 grows. I am looking to keep it for the next several years. I do not add anything with any salts. They are bad for the microbes. No synthetic nutrients no flushing.
 
Reactions: cfears
Quote Reply
A

alpha.ganjaguy

Posts
380
Reactions
590
Joined
Apr 4, 2022
Points
93
Nov 16, 2023
#12
tap water is fine, no need to even check the water report in for vast majority of people who have piped water to your home..

RO water tends to be the cause of more issues than fix.. look around the forums at how many people have issues and are using RO then check how many use tap and any issues they have..
 
Reactions: cfears
Quote Reply

Comnconnection

Posts
33
Reactions
47
Joined
Oct 28, 2023
Points
18
Nov 16, 2023
#13
cfears said:
I have a whole house salt water softener system. What should I use for watering? Bypass water softener with City water? Reverse osmosis for plants?
Click to expand...
Just ran into an issue on this with a friend. Definitely don't use water from a water softener. Use R/O water with 1ml/gal cal-mag for soil, or 3-6ml/gal cal-mag for soilless or coco. Tap is cool if the EC is at like .2, then you can just let it sit out for a day or two in a bucket with an oxygen stone. Keep in mind that things like chloramines don't evaporate out of water and would need to be filtered out. In CO water quality is good and I've had fantastic crops come from just good soil and tap water sitting out. I'd still recommend R/O water though just to eliminate water quality as a variable, especially when it comes to trouble shooting. Here is a picture of what plants that get hit with softened water, or high salt content, look like. This could easily be confused for a mag deficiency or something else.
 

Attachments

  • IMG_3AF24C0D6B5F-1.jpeg
    169 KB · Views: 3
Reactions: cfears
Quote Reply

The_Greenist

Posts
548
Reactions
1,603
Joined
Nov 11, 2023
Points
143
Nov 16, 2023
#14
Comnconnection said:
Just ran into an issue on this with a friend. Definitely don't use water from a water softener. Use R/O water with 1ml/gal cal-mag for soil, or 3-6ml/gal cal-mag for soilless or coco. Tap is cool if the EC is at like .2, then you can just let it sit out for a day or two in a bucket with an oxygen stone. Keep in mind that things like chloramines don't evaporate out of water and would need to be filtered out. In CO water quality is good and I've had fantastic crops come from just good soil and tap water sitting out. I'd still recommend R/O water though just to eliminate water quality as a variable, especially when it comes to trouble shooting. Here is a picture of what plants that get hit with softened water, or high salt content, look like. This could easily be confused for a mag deficiency or something else.
Click to expand...
Geez, I need to cut down on the cal mag.

Been running 5ml per gallon of RO in soil.
 
Quote Reply

Comnconnection

Posts
33
Reactions
47
Joined
Oct 28, 2023
Points
18
Nov 16, 2023
#15
The_Greenist said:
Geez, I need to cut down on the cal mag.

Been running 5ml per gallon of RO in soil.
Click to expand...
Lol, you may be fine if you have a big plant in a depleted soil. Look for a darker green leaf color, curled under leaf tips, and burnt tips as signs of over doing it. But yeah if your in fresh or 3-4 week old soil, your prob not going to be higher then 1-2ml unless in week 5-6 flower on a crushing plant.
 
Quote Reply

The_Greenist

Posts
548
Reactions
1,603
Joined
Nov 11, 2023
Points
143
Nov 16, 2023
#16
Comnconnection said:
Lol, you may be fine if you have a big plant in a depleted soil. Look for a darker green leaf color, curled under leaf tips, and burnt tips as signs of over doing it. But yeah if your in fresh or 3-4 week old soil, your prob not going to be higher then 1-2ml unless in week 5-6 flower on a crushing plant.
Click to expand...
That’s exactly what I have, my plants are dwarfs.

Definitely going to cut back.
 
Reactions: Comnconnection
Quote Reply
Page 1 of 1 · Replies 1–16 of 16
1

Thread info

Replies 15
Views 2,958
Started Nov 14, 2023
Latest post Nov 16, 2023
Starter cfears
Forum Introduce Yourself

Latest posts

  • Tumble stumbles upon a Spider Farmer clip on fan.. Growing Blue Cheese, North Thunderfuck, Cali Blues, and Bruce Banner #2
    • Latest: Tumbleweed375
    • Today at 12:11 AM
    Grow Diaries
  • 2026 Outdoor Grows! let's see em!
    • Latest: Derelict999
    • Yesterday at 11:34 PM
    General Outdoor Growing
  • itscheese`s cheese thread
    • Latest: Itscheese94
    • Yesterday at 11:30 PM
    Introduce Yourself
  • Eternal Sun 2026 outdoor garden grow
    • Latest: EternalSun
    • Yesterday at 11:28 PM
    General Outdoor Growing
  • Big Al’s 2025 season indoor/outdoor grow in misery
    • Latest: EternalSun
    • Yesterday at 11:25 PM
    Grow Diaries
  • Home
  • Forums
  • Site Happenings
  • Introduce Yourself
  • Indoor grow room build watering solutions
  • Contact us
  • Terms and rules
  • Privacy policy
  • Help
  • Home
Community platform by XenForo® © 2010-2026 XenForo Ltd.
Menu
Log in

Sign up

  • Home
  • News
  • Classifieds
  • Forums
    • What's new Featured content New posts New Articles New articles New products Latest activity
  • Social
  • Strains
  • Live
  • Learn
  • Brands
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?