Is water with 8.3ph & 120mg sodium per liter ok?
- Thread starter DrDukePHD
- Start date
Bob&Trees
Member
Is that your tap water? Sounds like more sodium than you want especially in organic soil.
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DrDukePHD
Well-Known Member
Yes, i looked up the county water report & it's 120mg per liter. Definitely seems like a lot but I have nothing to compare it to & no idea how much is too much.
From that link you offered
"Most plants will typically suffer injury if sodium exceeds 70 milligrams per liter in water, or 5 percent in plant tissue, or 230 milligrams per liter in soil, in the extract from a saturated soil paste"
Is that saying 70mg watered into soil will cause injury, or more than 230mg watered into soil will cause injury. Confuses me lol
Billy the Mountain
Well-Known Member
120ppm Na is awfully high unless you're growing tomatoes or peppers. Most other plants, cannabis included, aren't as tolerant to high sodium levels.
go go kid
Well-Known Member
same, way too high for cannabis https://waterfilterguru.com/how-to-remove-salt-from-water/
Search "irrigation water, alkalinity, and pH".
Sodium is way too high for container gardening.
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Rozgreenburn
Well-Known Member
If you can collect rain water, you could cut the tap water with 1/2 rain water and you'd be close to fine!
Dehuey water is quite similar. Good luck.
Dehuey water is quite similar. Good luck.
Week4@inCharge
Well-Known Member
Got RO Filter? Never thought about checking into the salinity in the tap water. There's a product out there that's supposed to help with high salt levels in the soil.
Sea Green by Primordial Solutions. notice it advertising aid in salt removal?
?"Buffer against salt and high EC conditions associated with poor soil or heavy feeding". ?
I've never used the product, not yet anyways, but maybe someone who has can chime in?
(some swear by Langbeinite as a good product for that too,)
Edit: Well blow me down and pick me up...my sodium levels are 160... sheez o peets. Ro Filter it is.
Sea Green by Primordial Solutions. notice it advertising aid in salt removal?
?"Buffer against salt and high EC conditions associated with poor soil or heavy feeding". ?
I've never used the product, not yet anyways, but maybe someone who has can chime in?
(some swear by Langbeinite as a good product for that too,)
Edit: Well blow me down and pick me up...my sodium levels are 160... sheez o peets. Ro Filter it is.
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Week4@inCharge
Well-Known Member
WhaT are you guys reading? The chart there reads TDS (total dissolved solids) less than 450 mg/L is generally safe.
Another Edit...
I get it now, generally safe for humans but not for Cannabis.
(copy n pasted)
"We define water that has a high content of dissolved minerals as hard.
Primarily, hard water contains high calcium and magnesium content.
To measure its hardness, we look at how many milligrams of calcium salts there are in a liter of water.
So, 200-400 mg/L is the range for hard water while 400-550 mg/L is for very hard.
Hard water for growing marijuana
In general, tap water floats along the range of 170-390 mg/L.
While it is not dangerous to humans, consuming this type of water can be harmful to cannabis.
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DrDukePHD
Well-Known Member
Yea it sucks. I have to either give them spring water now, or invest in a R.O. system. Public water in so much of America is terrible quality & grossly expensive.
Wow your h2o is worse than mine? 160! Had you noticed a lot of dying plants late in flower?
Week4@inCharge
Well-Known Member
Not dying just fading. I use to see it at week 4 of flower...with the RO I think I could've made the entire grow with no problem, but got lazy after week 6 and started mixing tap with the RO and at week 8 of flower my plants started to fade fast.. I'm just stoked I made it to week 8 of flower with no problems...lol. Just weird taking solids out of the water only to put it back in with all the stuff we add...lol .. Anyways I use the Hydro Logic Stealth 150, takes about an hour to filter 5 gallons. the Stealth 300 probably 15 minutes to filter 5 gallons.
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Billytheluther
Well-Known Member
Ive heard that dehumidifier water is like ro and some use it but i thought root rot is caused by some form of bacteria that comes from stagnant water
DrDukePHD
Well-Known Member
Here I was week 4 flower of my first grow (using my tap water). Look similar to what you saw?
I'll definitely look into that RO system you suggested, thanks! Anyone use their Stealth RO for drinking water too, like just add mineral drops or whatever
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Billytheluther
Well-Known Member
I use it for cooking, used to drink it but after a while i figure it builds up bacteria inside the filter housing.
Greengrouch
Well-Known Member
Works, but it’s slow, takes about 30min to fill a gallon but 0ppm is 0ppm AQUATICLIFE Aquatic Life RO Buddie Plus DI Four Stage Reverse Osmosis Deionization Unit 50 GPD https://a.co/d/hzeeXKy
Billy the Mountain
Well-Known Member
Good call; although dehuey water is free of mineral content, it's only as clean as the coils and internal surfaces.
Drinking or cooking dehuey water is not a good idea to put it mildly.
TCH
Well-Known Member
I dont have stealth, but I do use my system for drinking water. I add 1/4tsp pink salt per gallon. I found after the first couple weeks drinking ro water exclusively and being very active, I was showing signs of dehydration even though I was taking in a gallon plus per day. A little research and i quickly found out that I was an idiot. Haha. Since adding salt, I've never had the issue again.
Week4@inCharge
Well-Known Member
Billytheluther
Well-Known Member
I totally agree but just to be clear i was talking about consuming water from my ro system not from the dehuey, that would be pretty farout haha
pahpah-cee
Well-Known Member
My tap water is around 8.3ph on average and around 90ppm of sodium.
Last run I did no RO, only tap. I would top dress biweekly with langbeinite. I was surprised at how well my plants turned out.
Last run I did no RO, only tap. I would top dress biweekly with langbeinite. I was surprised at how well my plants turned out.