ph! ph! My kingdom for steady ph!

OnSolomonsGrave

Well-Known Member
Was posting simply for info's sake, My tap comes out at 200ppm and I use it straight to water all my outdoor garden plants. But I do splurge a lil for my indoor stuff, I pay roughly 6 cents a gallon for 20ppm water, they love it, and I really can say i can see a very small difference. but lots of good info in this thread thanks al.
 

Al B. Fuct

once had a dog named
So, you are growing two batches of plants, some on tapwater and some on filtered water?

Unless you are growing a quantity of plants in each water group, side-by-side, with all other conditions being equal, to be honest, you really don't know what you're looking at. It's not generally useful to compare batches in sequence as other factors may have changed between the batch you have in now and the one you did before changing water types.

If you are using 20ppm water in a non-soil grow, be on the lookout for Ca & Mg deficiencies.
 

OnSolomonsGrave

Well-Known Member
If you are using 20ppm water in a non-soil grow, be on the lookout for Ca & Mg deficiencies.
They live in FFoF 50/50 perlite. As for the other plants I just meant it's not worth the effort for the ammount of water they needed. not that it was particularly better.
 

lorenzo08

Well-Known Member
I'm using gh 70% mix. I was using tap water from a community well, but I'm trying flowering with 15ppm filtered water. I don't have a ppm tester yet, but I'm doing my best without it. educating myself by lots of reading and a little experimenting. I'll try looking for a Ca/Mg supplement to try adding.

H&D said:
I wanna know how you worked out that the extra 300ppm from tap water done the damage ?
I think 90% of the damage was actually nute burn.. I wasn't exactly sure how that works when using tap water. I don't have the floramicro for hard water. so is there no chance of tap water being that bad for the plants? would they most likely do better in filtered water with the right supplements?
 

Al B. Fuct

once had a dog named
so is there no chance of tap water being that bad for the plants?
Not if it came from a modern water treatment plant.

would they most likely do better in filtered water with the right supplements?
With all other factors being equal, you'd be hard pressed to find any difference whatsoever. Why spend up on something that has no obvious benefit?
 

lorenzo08

Well-Known Member
Not if it came from a modern water treatment plant.

what about well water? just up the road from me, my mom has a big rust problem. a lot of iron in the water. mine doesn't seem as bad. I'm used to drinking well water, but tasting filtered water is like night and day. good stuff, fresh water is.
 

Al B. Fuct

once had a dog named
Iron is a necessary micronutrient for cannabis. Don't hit the plants with a very BIG iron, though. ;)

Well/bore water won't generally hurt plants unless it has high salinity. When in doubt, have the water tested by the Extension agent.
 

SmallPowerzzz

Active Member
If you can't afford a meter, mix for pH5.9-6.0. Considering the amount of error in colour-match pH tests, that's about as finely as you will be able to resolve the reading anyway and should prevent you going into the evil range outside of 5.5-6.3.
That was about where I was mixing too, maybe I'll get my boyfriend to buy me a digi for my birthday

Make it a priority to buy a pH meter ASAP. Accurate pH & nutrient strength metering really are important to successful hydro growing. Once you have good meters, they will last you some years. The yield advantage of hydroponics will soon justify the cost of the meters.
Better equipment, better cannabis I take it then? Or is that too general.

Heh, yes, new growers DO look in on their plants often. New growers as a result often kill plants with kindness.
I'll lay off then it's just so tempting, they are so pretty, new growth daily change it's almost intoxicating. Growing is actually a lot of fun, maybe I'll get better at it lol

I'm not a fan of frequently spraying plants in a grow room. It's usually a battle to keep humidity down to levels that don't promote mould and bud rot.
There is a lot of air movement in the grow room, 2 fans and a window fan with intake and exhaust. Highest temp so far this summer was 87F, on the hottest day.

I've been known to foliar feed some outdoor plants in my gardens, but that's a totally different environment to an indoor grow op. Kelp spray is OK in your indoor op, but keep it to 1x/week, during lights off, preferably in the hour just before lights on.
Glad to hear that kelp spray is ok, um my plants in veg are under 24 hours of floro light should I decrease? Most people told me they do better with constant light.

I use Eutech pH meters. Whatever meter you buy, make sure it is waterproof. Should have rubber o-ring seals on the battery cover and pH meters should have a seal on the user replaceable probe tip. Don't bother with pH meters that do not have a user-replaceable tip
I will keep my eye out for that

How many plants is that rez supporting?
3 right now

If you want to remove any unwanted stuff from your media, flush the pots from the top with large volumes of plain water (no nutes) which has been adjusted to pH 5.8. Dump a few litres through each pot. Discard the runoff.
Cool I will do just that.
 
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Al B. Fuct

once had a dog named
That was about where I was mixing too, maybe I'll get my boyfriend to buy me a digi for my birthday
Boyfriend?! Why is it that we boys always end up paying for the pH meters and the boob jobs? JEEZ! :lol:

Better equipment, better cannabis I take it then? Or is that too general.
Well, not really... It's more like 'the right equipment will give you the best weed the plant's DNA will allow.' However, a $250,000 mass spectrometer, which can tell you anything about your nutes that can be known, won't give you sooperweed.

I'll lay off then it's just so tempting, they are so pretty, new growth daily change it's almost intoxicating. Growing is actually a lot of fun, maybe I'll get better at it lol
Intoxicating!? HAH! Good one. ;)

Of course, it's always fine to look in on them, perhaps hang around, say hi, all that. Just resist the urge to fiddle!

There is a lot of air movement in the grow room, 2 fans and a window fan with intake and exhaust. Highest temp so far this summer was 87F, on the hottest day.
Do you have a peak memory thermometer? Nice to know for sure how high & low the temps run. How close does the room air temp stay to the ambient air temp?

Glad to hear that kelp spray is ok, um my plants in veg are under 24 hours of floro light should I decrease? Most people told me they do better with constant light.
Yep, I run my mums and clones under 24/7 light, mums under a 400HPS, clones under fluoros. I do a pass of cuttings off the mums every two weeks.The 400 is necessary to make them regrow fast enough to keep up with my cloning needs.

Since you're vegging with fluoros, it will take a fair bit more time for your mums to recover from cuttings, perhaps 4 weeks. However, this may be just fine for your requirements. See how you go when you get in the swing of things.

3 right now
You should be OK with about 15L of tank volume. I know you've just put in a 24L tank, which will be fine for about 5 plants.
 

lorenzo08

Well-Known Member
Well, not really... It's more like 'the right equipment will give you the best weed the plant's DNA will allow.' However, a $250,000 mass spectrometer, which can tell you anything about your nutes that can be known, won't give you sooperweed.

allow me to be an ass here for just a moment. I think you have it backwards. the right DNA will get you the best weed, the right equipment will allow you access to it.
 

lorenzo08

Well-Known Member
Al, I was reading a thread from a few months back, before you went on a vacation. you said something about how these forums fill with people who think they know it all and go right off what they read, but you've been going off your 10+ years experience. please, don't ever get discouraged. you offer us so much invaluable information. maybe one day, if you fall out of a lazy spell, you might even write a book on your growing experience and offer more of your knowledge to the world. being lazy while creating something great is a wonderful thing. :)
 

Al B. Fuct

once had a dog named
the right DNA will get you the best weed, the right equipment will allow you access to it.
Actually, that's what I just said.

Al, I was reading a thread from a few months back, before you went on a vacation. you said something about how these forums fill with people who think they know it all and go right off what they read, but you've been going off your 10+ years experience.
My 20+ years experience didn't happen in a vacuum. I researched what published information was available (and still do) and put it in practise. However, thanks to political pressures on scientists who might research these things (DEA stubbornly refuses to allow anyone to grow for research aside from NIDA and also won't allow NIDA to provide cannabis for research into effects on users), there's quite a lot of holes in the available research into growing cannabis. I never guess, but I do from time to time draw reasoned conclusions from other information on growing herbaceous plants which are broadly similar to cannabis. I'm very careful with such leaps, though.

please, don't ever get discouraged. you offer us so much invaluable information. maybe one day, if you fall out of a lazy spell, you might even write a book on your growing experience and offer more of your knowledge to the world. being lazy while creating something great is a wonderful thing. :)
Thanks for that. I doubt there's a grow book in my future, though. In this modern age, you write a book, sell one copy and a million are suddenly in circulation. It's not 1977 anymore, where Ed's column in HT was about as good as you could get.
 

Al B. Fuct

once had a dog named
"For dummies" is almost surely copyrighted. If it isn't, that's probably the title I'd use! Would not be shocked to see a clandestinely published grow book with that very title.

At the end of the day, growing dope really and truly isn't all that hard, as long as you know the basic parameters. I have said a few times that if I were to write a grow book, I bet I could get the job done in 10 pages or less. I may hold myself to that challenge one day, but at this moment I'm just as happy to grow dope and write about it in my idle time.
 

lorenzo08

Well-Known Member
that for dummies company sometimes goes around looking for pro's and offers to let them write a book for them. I've seen it happen in the linux world, but not much money in it for all the months of work that goes into a book like that. a 10 page book, all truth no bs sounds good. I don't think I could do that. when I start talking or writing about something I enjoy, I babble and talk to much. lol
 

Al B. Fuct

once had a dog named
oh, I'm absolutely guilty of babbling, too. :D When I am writing on this topic, I tend to state, support and restate. I don't ever presume my reader to be stupid, but I do try to anticipate likely questions and make clarifications on the fly.
 

BCnative

Well-Known Member
I dont know if any of you guys have ever been to Ibiza, Majorca or the Canary Islands, but you can't wash your teeth in the water never mind drink it. Washing your teeth in it gives you a sore throat, and drinking it will make you ill. It is very foamy water, i've always wanted to know why that is, does anyone know?
Sorry for wandering off the track, but it has always bugged me.
Would it be bacteria, minerals or cause of the volcanic rock?

duuude ive been to tha canaries n i was brushin my teeth with the water ther but dont remember anythin like that but im a smoker so if i gotta sore throat coulda been blamed on that
 

Al B. Fuct

once had a dog named
duuude ive been to tha canaries n i was brushin my teeth with the water ther but dont remember anythin like that but im a smoker so if i gotta sore throat coulda been blamed on that
Poor water treatment which allows pathogens like E. coli, cryptosporidium and giardia results in waterborne diseases akin to gastroenteritis, with diarrhea, nausea, vomiting associated. Bit more than a sore throat.

Treatment plant was on their game or your immune system is a little tougher than average, who knows, could be any number of things.
 
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