gr865
Well-Known Member
Thinking the cheap drip nozzles are the problem, I am not sure cause this is my first time with a system like this. When a nozzle is not dripping I just have to thump it and it start working.
GR’s Stacked 315W CMH Vertical, G13 Haze, 2017
- Thread starter gr865
- Start date
Bakersfield
Well-Known Member
You don't need to use nozzles, just adjust your timer down a bit.
gr865
Well-Known Member
If you look at the picture of the manifold, I have 5 lines running from it and at the pots I and a cross fitting to give me 3 tubes per pot.
If I remove the drippers will I have enough pressure to give each line the pressure it needs?
Bakersfield
Well-Known Member
I use a different style of drip system than yours and do not use emitters, because they plug so often.
In my system I use a long piece of 1 inch line with a pump connected to each end. This ensures an even pressure up and down the line.
I then tap into the 1 inch line with individual 1/4 inch spaghetti lines that run to the plants.
So the 1 inch line is my manifold.
I'd tinker with your system a bit. Try pulling the emitters off and check to see how it performs.
If the lines closest to your pump depressurise the output of the lines up the manifold, you can also adjust flow rates with longer or shorter lengths of tubing.
Bakersfield
Well-Known Member
I use 2@ 800 gph pumps.
I adjust my timer till I get around 15% runoff. This changes throughout the growth cycle.
Mine operates 2 minutes @ 6 cycles a day.
I'm not sure about psi's in my system, I just adjust to fit.
I adjust my timer till I get around 15% runoff. This changes throughout the growth cycle.
Mine operates 2 minutes @ 6 cycles a day.
I'm not sure about psi's in my system, I just adjust to fit.
Bakersfield
Well-Known Member
I'll run 1 line per plant in a 5 gallon or more if the container surface area is larger. I'll split a line with a t fitting for a 3 gallon and water 2.
ttystikk
Well-Known Member
Found your problem; all lines need to originate from the main manifold; every time you split you lose water volume. Some are direct, others are split into 2, others into 4 from the looks of things in the pic. That should solve your problem.
If not, then you need a filter at the pump.
gr865
Well-Known Member
No, I have one line per plant that splits at the pot to three points, all lines at the same length. But this ain't working so here is the plan, LOL, the best laid plans of mice, men and me.
I am changing this, going to try one line per plant off a 3/4" manifold. Should have done this in the first place, but no I had to try and get all fancy, KISS! Going to try a 2 gal/min drip emitter, if they plug I will go bare naked tube directly to the plants. Will be testing this tonight.
GR
ttystikk
Well-Known Member
Your lines did not shrink in diameter at every junction so you ended up with low and inconsistent flow. Your new plan sounds much better.
gr865
Well-Known Member
gr865
Well-Known Member
What a day, wanting to solve the problem with the drip system;
Today I dismantled the system. removed the 8 port manifold, built a loop manifold from 3/4" black vinyl with 5 ports. Put 1/4" red rubber hose on it, all of equal length, and mounted a 2 gph pressure compensating emitter. Plenty of pressure to run them now. Was so busy I forgot to take some pic's, will do it prior to lights on.
Emptied both rez's, cleaned and refilled with 15 gallons of 1.55 EC solution at 5 78 pH.
Timer set for 10 min, want to check it out before I go with multi feeding, just doing two feeding tonight 10:15 and 2:30, then will check them at 6 and see if they need more solution and possibly do another run at 6:30.
Ran the check and had runoff after 8 min, so will set for 7 min/cycle, not sure of the number of cycles yet, probably 3 to start.
GR
Today I dismantled the system. removed the 8 port manifold, built a loop manifold from 3/4" black vinyl with 5 ports. Put 1/4" red rubber hose on it, all of equal length, and mounted a 2 gph pressure compensating emitter. Plenty of pressure to run them now. Was so busy I forgot to take some pic's, will do it prior to lights on.
Emptied both rez's, cleaned and refilled with 15 gallons of 1.55 EC solution at 5 78 pH.
Timer set for 10 min, want to check it out before I go with multi feeding, just doing two feeding tonight 10:15 and 2:30, then will check them at 6 and see if they need more solution and possibly do another run at 6:30.
Ran the check and had runoff after 8 min, so will set for 7 min/cycle, not sure of the number of cycles yet, probably 3 to start.
GR
gr865
Well-Known Member
Thanks, did not think about that, will set it on the floor of the tray tomorrow.
Thanks again,
GR
Bakersfield
Well-Known Member
Looks good! I'm definitely subbed.
I haven't read the whole thread yet so I'll ask;
Does your system drain to waste? If so your ec is pretty high from my experience, especially in veg.
I personally keep mine around 1.2 and raise it up to around 1.4 in flower depending on the strain.
Indica dominant, not the OG's and Chems, can handle higher nutes than the Sativas.
I also like to flush it real good, once a week.
Honestly, running at a lower ec I still manage to burn the tips of the leaves by the time of the chop.
gr865
Well-Known Member
Hey Bud,
I am running DTW, I use either or both RO and rain water, both ppm @ around 5 ppm, I spoke with the folks at Canna and they suggested that I use my tap water (my tap is well over 800 ppm), to bring the solution to 120 ppm.
So instead of using my tap water I use Epsom and Cal/Magic
I picked this up a few years ago and still use it today.
LESS IS MORE
200 - 350 ppm of a + b for veg
400 - 550 ppm of a + b for flower
Cal/Magic to a+b ratio
150 ppm/200 ppm = 350
100 ppm/3ooppm = 400
50 ppm/ 400 ppm= 450
Here is a chart the gives the ratios of Calcium in given ppm of A&B.
This is based on slightly rough math but is very close to correct in my experience.
A&B/Calcium
3 ml/gal = .4 EC = 200 ppm with around 44 ppm of calcium
4.5 ml/gal = .6 EC = 300 ppm with around 66 ppm of calcium
6.2 ml/gal = .8 EC = 400 ppm with around 88 ppm of calcium
7.7 ml/gal = 1 EC = 500 ppm with around 112 ppm of calcium
9.2 ml/gal = 1.2 EC = 600 ppm with around 135 ppm of calcium
To my RO/rain water I add 2 grams of Epsom and 3 to 4 ml of Cal/Magic.
5.8 pH
Drip clean for the win.
Silica as a pH up in veg only.
This Calcium information is purely based on a Canna schedule, using Cal/Magic As I stated, once you hit around 700 ppm you no longer need cal/mag additives.
I use GH Cal/Magic and Epsom. When I use RO or rainwater (2-5 ppm) I add C/M and Epsom to bring my #'s to 120 ppm, then begin adding the base nutes. I use Canna Coco's line of nutes but I back off of their recommended rates, as I feel they are way high. For example, in veg I will add only 200 to 300 ppm of A&B and in flower 400 to 500 ppm.
Using Epsom and Cal/Magic to get my ppm's to the desired level I get plenty of those nutes, and have not had any issues with Mag deficiencies.
GR
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coreywebster
Well-Known Member
Nice work on the new manifold dude.
Love the avatar Bakersfield.
Not saying it IS why......but lack of some nutes can give you those little yellow/burt tips also.....mostly mag from my experience.I run 4 mil of floranova bloom for my entire cycle.Some strains like some extra mag and i get the same thing....yellow tips.A little bit of epsom salts and all newer growth ceases with the burnt lookin tips for me.
coreywebster
Well-Known Member
Could be from a tiny bit too little K also @Bakersfield