Flushing With Tap Water?

OldMedUser

OldMedUser

Well-Known Member
Shugglet said:
Flushing to clean your plants out is a myth. A myth that will never die because of stupid grower logic.

Flushing to clean out your system is completely different...
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If you're growing in pots and have overfed your plants so that they are burning then flushing can wash out the extra nutes to prevent further burning and allow the plants to use up the extra nutes in the leaves. It's not going to remove the nutes from the plants tho and if it's just a week or so from chopping they'll still have extra salts in the whole plant.

The plants have to be actively growing to use up stored nutes in their tissues. The N-P-K, Mg and Zinc are all mobile so the plant will pull them out and use them for new growth if they can't find them in the pot.

This is why I find nute charts to be useless if not damaging as they all say full strength right up to a week before chopping. That doesn't leave enough time for plants to use up all the extra nutes as they are barely feeding near the end.

:peace:
 
S

Shugglet

Well-Known Member
OldMedUser said:
If you're growing in pots and have overfed your plants so that they are burning then flushing can wash out the extra nutes to prevent further burning and allow the plants to use up the extra nutes in the leaves. It's not going to remove the nutes from the plants tho and if it's just a week or so from chopping they'll still have extra salts in the whole plant.

The plants have to be actively growing to use up stored nutes in their tissues. The N-P-K, Mg and Zinc are all mobile so the plant will pull them out and use them for new growth if they can't find them in the pot.

This is why I find nute charts to be useless if not damaging as they all say full strength right up to a week before chopping. That doesn't leave enough time for plants to use up all the extra nutes as they are barely feeding near the end.

:peace:
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I should have been more specific saying hydroponics, soil is a whole different beast.
 
OldMedUser

OldMedUser

Well-Known Member
Budley Doright said:
Any thoughts as to why it's rising? My well water does the same just not as drastic.
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The only thing I can think of is as the water gets warmer more of the carbonates disassociate into ions that would show a higher pH reading. Low pH = higher levels of H+ ions and higher pH = higher levels of OH- ions. I got my diploma in chemistry almost 30 years ago so things are fuzzier than they used to be. :)

:peace:
 
OldMedUser

OldMedUser

Well-Known Member
Shugglet said:
I should have been more specific saying hydroponics, soil is a whole different beast.
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Exactly. With hydro you just drain the system and refill with water and you're as flushed as you're going to get.

An idea I've had recently is to limit how much of the rootball gets water by only giving the plants 1/4 of the amount that soaks the whole pot by pouring it in the tray so just the bottom 1/3rd or so gets wet. That way extra nutes in the upper dry zone won't be accessible to the plant but it will get lots of water still. Makes me go Hmmmm . . .

:peace:
 
Budley Doright

Budley Doright

Well-Known Member
OldMedUser said:
The only thing I can think of is as the water gets warmer more of the carbonates disassociate into ions that would show a higher pH reading. Low pH = higher levels of H+ ions and higher pH = higher levels of OH- ions. I got my diploma in chemistry almost 30 years ago so things are fuzzier than they used to be. :)

:peace:
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Well you've got me beat lol. I really didn't care for chemistry :(.
 
greg nr

greg nr

Well-Known Member
OldMedUser said:
The only thing I can think of is as the water gets warmer more of the carbonates disassociate into ions that would show a higher pH reading. Low pH = higher levels of H+ ions and higher pH = higher levels of OH- ions. I got my diploma in chemistry almost 30 years ago so things are fuzzier than they used to be. :)

:peace:
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My degree was in Chemical Engineering. I might as well have gone to father guido sarduchi's 5 minute university. ;)
 
Budley Doright

Budley Doright

Well-Known Member
I've only had one instance where flushing actually saved half of a run, and the only time it seemed to make a difference in flavour. I was running a kinetin plant hormone additive (just a trial lol) and half the plants finished early, they smelled and tasted terrible so I let the others finish with no additives and plain water for about a week. The later harvested plants had shed the terrible taste (same makeup as the additive smelled like), even after a cure the smell was there. It was flood and drain btw.
 
OldMedUser

OldMedUser

Well-Known Member
greg nr said:
My degree was in Chemical Engineering. I might as well have gone to father guido sarduchi's 5 minute university. ;)
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Chemical engineering is a whole different animal to what I took. I went to the BC Institute of Technology and it's hands-on learning in their chemsci program. Everyone gets the same things in the 1st year and you pick your option for the 2nd year. Gas&Oil, Metallurgy, Pulp&Paper and Environmental. I took the Enviro option as it does a lot more organic chem and when I was in high school in '71 I planned to take organic chem there and get rich making drugs but bought a '70 Triumph Bonneville and dropped out not long after. :)

Went back 17 years later and got that damn diploma but knowing what I did by then about the drug trade did not turn my knowledge to evil. A well known biker gang that I was friends with a few members of tried to coerce me into running a meth lab after I graduated and that was my main motivation to moving way the hell up north from the beautiful Fraser Valley. Became another truck driving schlub to pay the bills. Shit happens.

I considered going on to uni as my diploma was good for 2 years credit but the boys mom left a year later and I became a single dad of two young boys. The youngest with severe ADHD so was hard to keep a regular job and doing uni level courses was out of the question.

All that stuff sure makes it easier to do a lot of the things pot related tho so it wasn't a total waste. :)

:peace:
 
John Copper

John Copper

New Member
Use sewer water and no nutrients. I grew a pound of finely trimmed bud with seven dirt weed Mexican seeds, sewer water and no light.LOL
 
K

KryptoBud

Well-Known Member
John Copper said:
Use sewer water and no nutrients. I grew a pound of finely trimmed bud with seven dirt weed Mexican seeds, sewer water and no light.LOL
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You grew it finely trimmed? WOOOOW must've saved some time.
seven dirt weed Mexican seeds. You ever consider poetry?
sewer water and no light LOLOLOLOLOLOLOLOL! stick to poetry your comedic skills are shit.
 
bullSnot

bullSnot

Well-Known Member
I never flush. Actually I rarely water to much run off. I don't flush because I feed the soil - we never use chemical ferts - well occasionally after transplanting to get a quick growth spurt.

I then can recycle the soil with some additives. God gave us Feather, Bone, Alfalfa,Kelp fish meals to grow better ganja mun.
 
Cannabis Jack

Cannabis Jack

Member
She is getting close so I just use rainwater if it’s available some in strait up sun get done sooner so they don’t make any 14 day flush , days got longer now she tries to reveg some.. Early December Baby. 2nd pic , Revegged , near done. Strait rain water now bout 5.8 ph
 

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