Drip system question, please help <3

DailyBlastin

DailyBlastin

Well-Known Member
Good evening all, Today id like to ask for some help with psi calculations and/or general drip knowledge, Ive done DWC and EnF for years and at one point converted my EnF setup to be a drip to waste and while it worked fine, i dont think i did it the "right way". Im setting up a new grow and will be doing drip to waste again but this time id like to do it right. Ive googled these calculations over and over but its a bit more math than i understand if im being totally honest lol. So heres the setup. I have a 16gal reservoir that will hold my nutrient solution for 4 plants, i have a 300gph pump that pushes up just under 2ft head height to get out of the res, then about a 8ft run of 1/2" hose going from the res into the tent to a 4way drip manifold, the manifold is on a 1ft riser (im not sure if this second rise even matters much to the calculations since its not even as tall as the first rise {to get out of the barrel} but idk) theres about 8inches of 1/4" hose connected from the manifold to each pot, they are 2 gal pots and im using a coco/perlite mix so i plan to do 1gph drippers on a 15min cycle either once or twice a day (depending on the plants response) for a theoretical total of .25-.5 gal per plant a day. Ive been trying to figure out how much psi this setup will be putting out but have been unsuccessful thus far, If someone whos better at math than i could kindly give me the answer it would be greatly appreciated, once i know the psi my follow up question will be, should i use a pressure regulator and if so what 'size'? Thanks in advance for any and all input :bigjoint: Ive attached a crude drawing as well just in case my explanation wasn't clear enough20191007_231809.jpg
 
DailyBlastin

DailyBlastin

Well-Known Member
ToFarGone said:
Forget about the math. Honestly don’t over complicate it. Hook up some pressure compensating drippers. Put a measuring cup under the output of the tubing or dripper. Start the pump and time how long it takes to get your desired amount
Click to expand...
appreciate the reply and pressure compensating drippers is good advice however i will not "forget about the math" too little psi causes problems, too much psi causes major problems, id like to know my psi so i can avoid all problems.
 
gr865

gr865

Well-Known Member
DailyBlastin said:
Good evening all, Today id like to ask for some help with psi calculations and/or general drip knowledge, Ive done DWC and EnF for years and at one point converted my EnF setup to be a drip to waste and while it worked fine, i dont think i did it the "right way". Im setting up a new grow and will be doing drip to waste again but this time id like to do it right. Ive googled these calculations over and over but its a bit more math than i understand if im being totally honest lol. So heres the setup. I have a 16gal reservoir that will hold my nutrient solution for 4 plants, i have a 300gph pump that pushes up just under 2ft head height to get out of the res, then about a 8ft run of 1/2" hose going from the res into the tent to a 4way drip manifold, the manifold is on a 1ft riser (im not sure if this second rise even matters much to the calculations since its not even as tall as the first rise {to get out of the barrel} but idk) theres about 8inches of 1/4" hose connected from the manifold to each pot, they are 2 gal pots and im using a coco/perlite mix so i plan to do 1gph drippers on a 15min cycle either once or twice a day (depending on the plants response) for a theoretical total of .25-.5 gal per plant a day. Ive been trying to figure out how much psi this setup will be putting out but have been unsuccessful thus far, If someone whos better at math than i could kindly give me the answer it would be greatly appreciated, once i know the psi my follow up question will be, should i use a pressure regulator and if so what 'size'? Thanks in advance for any and all input :bigjoint: Ive attached a crude drawing as well just in case my explanation wasn't clear enoughView attachment 4405012
Click to expand...
This is my current setup, can run 1 to 8 plants in my 4 x 4
The pump is a 12V 3 g/m @ 65# for an RV. This one is about as quite as you are going to get in this style pump.
20190918_101836 (2).jpg

Running 8 plant horizontal grow currently, this pic is from a 5 plant vertical grow.
20181005_095126 (2).jpg

I just love this emitter, adjustable stream.
20181005_095120.jpg

Hope this helps buddy!
 
Last edited:
J

JackSkell

Active Member
gr865 said:
This is my current setup, can run 1 to 8 plants in my 4 x 4
The pump is a 12V 3 g/m @ 65# for an RV. This one is about as quite as you are going to get in this style pump.
View attachment 4405027

Running 8 plant horizontal grow currently, this pic is from a 5 plant vertical grow.
View attachment 4405029

I just love this emitter, adjustable stream.
View attachment 4405028

Hope this helps buddy!
Click to expand...
Nice setup man. I looked at that same emitter and thought the "spread" was an awesome idea vs dripping in 1 spot but as i stated i have 2gal pots and only want a max of .5gal a day, these emitters come in 10gph and 24gph and i feel like by the time i adjust them down enough to fit my water needs I wouldnt be getting much of the spread effect anymore. Ill have to do some tests with one for sure though! Or maybe its time I ditch coco and go with a medium I can water more freuqently..but then id want to go back to recirculating.. Hmmm
 
rob333

rob333

Well-Known Member
SMT69

SMT69

Well-Known Member
gr865 said:
This is my current setup, can run 1 to 8 plants in my 4 x 4
The pump is a 12V 3 g/m @ 65# for an RV. This one is about as quite as you are going to get in this style pump.
View attachment 4405027

Running 8 plant horizontal grow currently, this pic is from a 5 plant vertical grow.
View attachment 4405029

I just love this emitter, adjustable stream.
View attachment 4405028

Hope this helps buddy!
Click to expand...
Do you know the name of those drippers, I'm putting together a system and like those over the regular emitters. I haven't seen those.
 
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