Shimz Autofill Doser

shimz

vapest
Mar 12, 2019
313
1,950
95
in a dank funk
Gonna throw this up here. Mainly for @SoLowDoughLow but inspired by the excellent work of @HydroRed I give you plans to build the doser I've been running on two reservoirs for the last few years.

Please refer to the full instructions.PDF attached.

Here she is, a dually version of my doser. This is two systems in one box:
DSC_0093.JPG


The system automatically fills two reservoirs from my R.O. system plus nutrients from these stock tanks:
DSC_0101.JPG

I use Jack's 321 and Potassium silicate/Potassium hydroxide for pH up.

Here is the basic building block of this system, a simple Chinese relay timer board that has proven to be very reliable (except for that time I got one wet...):
DSC_0091.JPG


Here are the four boards in series. The first board is triggered by a float switch, which turns on an electric water valve for the amount of time programmed, at the end of the time the second board is triggered, which turns on a peristaltic pump for its programmed time, then the next and so on. You could hook up as many or as few boards as you need:
DSC_0098.JPG

The red wires are +12VDC and the blue are grounds. I used a little waterproof LED power supply but you could use almost any 12V supply over 1A output.

Power enters the first board (the one on the right with the yellow wires) at the COM terminal. That's the one on the bottom middle. Another wire shares that connection and runs up to the VCC terminal providing power to the first board. The yellow wires go through the float switch and back. One yellow wire shares the VCC terminal with the red wire and the other is connected to the IN terminal. When power is let through by the float valve, the board is triggered and the cycle begins.

Here are some closeups of the connections:
DSC_0099.JPG
DSC_0097.JPG


This is a closeup of the terminal strip. This just makes it easier to distribute the grounds and connect the driver to the power cord and driver to board power wires:
DSC_0096.JPG


I used the large sockit box. It's big enough to hold two full fill systems. I spec'd the medium box in the materials list, but you could actually get a system to fit in a small sockit box:
DSC_0105.JPG
DSC_0107.JPG


Of course, feel free to use any box you may have laying around or no box at all!

I hope some of you attempt this. Please read the full instructions in the attached PDF. I'm here to help if you need it, so post away!
 

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Last edited:

HydroRed

3Thirteen Seeds
Mar 13, 2019
1,694
36,065
115
Gonna throw this up here. Mainly for @SoLowDoughLow but inspired by the excellent work of @HydroRed I give you a rough draft of the doser I've been running on two reservoirs for the last few years. I still need to get some pics up, and I could use some feedback from expert DIY types (you know who you are) before I go full-on live with it.

DAMN @shimz -stellar write up and a perfect contribution to this thread! This is a fine example of a well written D.I.Y. instuctable.

Quick question... those digital interfaces hold values on power loss but restart at full values on power up (unless power loss remedied by a U.P.S. as suggested)?
 

shimz

vapest
Mar 12, 2019
313
1,950
95
in a dank funk
DAMN @shimz -stellar write up and a perfect contribution to this thread! This is a fine example of a well written D.I.Y. instuctable.

Quick question... those digital interfaces hold values on power loss but restart at full values on power up (unless power loss remedied by a U.P.S. as suggested)?
Yes, sir they do.

And thank you for the kind words. You're a tough act to follow!

This setup wouldn't work if they didn't memorize the settings. Here's the theory of operation: Power is always live to the first board's COM terminal. The NC side of board #1 feeds the second board's VCC and COM terminals, same on down the line. Now, if the float is tripped, board #1 begins to count down and the NO side kicks the water valve on and all the rest of the boards go dark. Once the countdown is finished, power is restored to board #2. Since the trigger is jumped to VCC through the switch, board #2 immediately starts counting down and fires the first pump. The rest of the boards then fire in turn.
 

Armdog

RDWC GROWER
Mar 13, 2019
904
5,175
95
Gonna throw this up here. Mainly for @SoLowDoughLow but inspired by the excellent work of @HydroRed I give you plans to build the doser I've been running on two reservoirs for the last few years.

Please refer to the full instructions.PDF attached.

Here she is, a dually version of my doser. This is two systems in one box:View attachment 1139

The system automatically fills two reservoirs from my R.O. system plus nutrients from these stock tanks:View attachment 1143
I use Jack's 321 and Potassium silicate/Potassium hydroxide for pH up.

Here is the basic building block of this system, a simple Chinese relay timer board that has proven to be very reliable (except for that time I got one wet...):View attachment 1146

Here are the four boards in series. The first board is triggered by a float switch, which turns on an electric water valve for the amount of time programmed, at the end of the time the second board is triggered, which turns on a peristaltic pump for its programmed time, then the next and so on. You could hook up as many or as few boards as you need:View attachment 1150
The red wires are +12VDC and the blue are grounds. I used a little waterproof LED power supply but you could use almost any 12V supply over 1A output.

Power enters the first board (the one on the right with the yellow wires) at the COM terminal. That's the one on the bottom middle. Another wire shares that connection and runs up to the VCC terminal providing power to the first board. The yellow wires go through the float switch and back. One yellow wire shares the VCC terminal with the red wire and the other is connected to the IN terminal. When power is let through by the float valve, the board is triggered and the cycle begins.

Here are some closeups of the connections:View attachment 1153View attachment 1154

This is a closeup of the terminal strip. This just makes it easier to distribute the grounds and connect the driver to the power cord and driver to board power wires:View attachment 1155

I used the large sockit box. It's big enough to hold two full fill systems. I spec'd the medium box in the materials list, but you could actually get a system to fit in a small sockit box:View attachment 1156View attachment 1157

Of course, feel free to use any box you may have laying around or no box at all!

I hope some of you attempt this. Please read the full instructions in the attached PDF. I'm here to help if you need it, so post away!
Great project
 

Big Perm

Shill™
Staff member
May 9, 2019
843
10,663
95
clone
Gonna throw this up here. Mainly for @SoLowDoughLow but inspired by the excellent work of @HydroRed I give you plans to build the doser I've been running on two reservoirs for the last few years.

Please refer to the full instructions.PDF attached.

Here she is, a dually version of my doser. This is two systems in one box:View attachment 1139

The system automatically fills two reservoirs from my R.O. system plus nutrients from these stock tanks:View attachment 1143
I use Jack's 321 and Potassium silicate/Potassium hydroxide for pH up.

Here is the basic building block of this system, a simple Chinese relay timer board that has proven to be very reliable (except for that time I got one wet...):View attachment 1146

Here are the four boards in series. The first board is triggered by a float switch, which turns on an electric water valve for the amount of time programmed, at the end of the time the second board is triggered, which turns on a peristaltic pump for its programmed time, then the next and so on. You could hook up as many or as few boards as you need:View attachment 1150
The red wires are +12VDC and the blue are grounds. I used a little waterproof LED power supply but you could use almost any 12V supply over 1A output.

Power enters the first board (the one on the right with the yellow wires) at the COM terminal. That's the one on the bottom middle. Another wire shares that connection and runs up to the VCC terminal providing power to the first board. The yellow wires go through the float switch and back. One yellow wire shares the VCC terminal with the red wire and the other is connected to the IN terminal. When power is let through by the float valve, the board is triggered and the cycle begins.

Here are some closeups of the connections:View attachment 1153View attachment 1154

This is a closeup of the terminal strip. This just makes it easier to distribute the grounds and connect the driver to the power cord and driver to board power wires:View attachment 1155

I used the large sockit box. It's big enough to hold two full fill systems. I spec'd the medium box in the materials list, but you could actually get a system to fit in a small sockit box:View attachment 1156View attachment 1157

Of course, feel free to use any box you may have laying around or no box at all!

I hope some of you attempt this. Please read the full instructions in the attached PDF. I'm here to help if you need it, so post away!
You now have my attention.
 

Heisenbeans

Dont Need One
Mar 11, 2019
2,491
56,288
115
heisenbeans.com
Whoa now I know I hit the big time, lol. The man himself!

Happy to be a part of this place that you've made and happy to share what I've learned over these many years.

My hat's off to you sir! And the beans...oh the beans! Can't thank you enough for those.
I'm a pretty busy person, I miss alot of what's here but I dont miss everything. I wish I had the time to interact more but i just dont. I'll see a thread pop up and see people talking about something to do with me or asking questions and it's like a 2 week old thread lol. Killer job on your post and information. Thanks again.
 

Armdog

RDWC GROWER
Mar 13, 2019
904
5,175
95

I don't even run a setup that could utilize it but it's neat... you got me watching vidya's.

Growmau5 did a ph automation video that's pretty good. But I imagine your setup takes care of all that.

Here's the vid anyway.
Got all the stuff ordered for the pH automation that Growmau5 video shows. About $240 total. Got tired of switching bottles of pH up and pH down. I know that sounds lazy,. Just lets me concentrate on other things. I'll let you guys know how it comes out.
 

Armdog

RDWC GROWER
Mar 13, 2019
904
5,175
95

I don't even run a setup that could utilize it but it's neat... you got me watching vidya's.

Growmau5 did a ph automation video that's pretty good. But I imagine your setup takes care of all that.

Here's the vid anyway.
Got all the parts in today for the Growmau5 ph automation. I'll put it together and take a picture or two.