Reddit mentions of MISOL 12V Timer Switch Timer Controller LCD display,program/programmable timer switch,25A amps

This fence line is just shy of 90 feet and my setup works pretty well at that length. I used pretty small diameter pvc so it’s not much weight; I can’t imagine reinforcement would be needed for the watering— maybe for the vines depending. It’s not a raging torrent of water it basically is just a steady drip but it saturates pretty well when run in cycles and not run during the heat of the day.

My initial version of this setup was a single battery and small solar panel and it ran fine for a year or more (granted I’m in SoCal so we get a lot of sun)— I’ve since expanded a bit to a 4 battery setup and larger panel but just because I added two more pumps for covering other areas.

Here’s a picture of the control box of a basic single battery system with timer and a simple solar controller
https://i.imgur.com/JOfGqdp.jpg


Here’s some of the basic gear:

Water Storage
===========================

Current Water tank
https://www.amazon.com/dp/B003H9WJMI/

(Although I’ve also used smaller/cheaper tanks like this for my vegetable garden, just might mean more refills depending on how often it’s run: https://www.amazon.com/dp/B01BFC5NIA/ )

If you’re looking to go super cheap, I honestly started my first setup with a couple modified 5 gallon plastic water bottles I stole from my office like these: https://www.amazon.com/dp/B003B27RAA/


Power
===========================

Current solar panel for a 4 battery setup:
https://www.amazon.com/dp/B07HFMBF3G

Previous panel for single battery system:
https://www.amazon.com/dp/B00PFGP0EA


Solar regulator (keeps you from blowing up the battery! The smaller panel comes free with one that works fine, I just liked this one better because it had more lights!): https://www.amazon.com/dp/B00L37KZI6/

Batteries, one is plenty for a single pump system:
https://www.amazon.com/dp/B003S1RQ2S/

(obviously if you wanted to build a system on the cheap you could bypass the solar entirely and drop $20 on a second battery that you leave charging and just swap them back and forth every week or three, depending on how often/long you run the system)


Pump
===========================

Current Pump:
https://www.amazon.com/dp/B072BXBQGC/

Although I’ve also used cheaper ones like these for drip systems and they were fine:
https://www.amazon.com/dp/B07699RMVB

https://www.amazon.com/dp/B00WYMC492

https://www.amazon.com/dp/B00DLKT4OO


Misc
===========================

Timer (has like 16 stop/start memories which should be plenty for any configuration):
https://www.amazon.com/dp/B0090MTLFO


If there is some interest next weekend I could draw up a complete wiring/assembly diagram and detailed parts list and make a separate post (and include all the sundries: wire, hose, clamps, filters, waterproof project box, couplings, drip heads, etc).

I have an off grid watering system in my greenhouse. The parts are:

• Water butts - filled from rain / buckets when I run out
  
• A 12v pump. At first I used a cheap bilge pump but although it moved an amazing amount of water, it wasn't great at lifting water or dealing with restricted flow. I also don't think it would appreciate the switching long term. https://www.amazon.co.uk/SEAFLO-11-6-Water-System-Pump/dp/B01N1GKIDT/ref=cts_sp_2_vtp This pump can also run high pressure sprayers if you so fancy although personally I think that's just a good way to increase humidity and waste water.
  
• 12v lead acid batteries
  
• Solar charge controller
  
• Solar panel
  
• 12v 40amp mechanical relay for switching the pump on and off (peak draw seems to be high enough to trip out the supposed 20amp relay in my timer)
  
• 12v programmable timer - https://www.amazon.co.uk/MISOL-Controller-display-program-programmable/dp/B0090MTLFO/ref=sr_1_7?keywords=12v+programmable+timer&qid=1563873158&s=gateway&sr=8-7
  
• A soaker hose - I use a gardena one. I split this into a few different lines to allow control over flow for different types of plants. I also have a hose setup for individual watering.
  
  Originally I tried using those little sprayers but I found them far too unreliable for my use. I want it to work without worrying that I'm not there. I also did have a solenoid valve before the hose line so that it didn't empty when switched off but this failed after about a month and I decided that fewer moving parts was better. Particularly having moved to a soaker hose where getting air in the line is both inevitable and not really a big deal.
  
  I'm considering replacing the timer with an arduino with a little cell transmitter to send data home and allow me to switch it on remotely. I'd highly recommend an arduino over a pi as it uses massively less power. It's instantly on and can hibernate at almost 0 power use.
  
  I'm also considering adding a fan to move extra air during the hottest parts of the day - although currently just removing the door seems to be working OK.

In order to do a fully stand alone system you need to make two changes;

-replace the 10 amp charge controller with as many of these 40 models in parallel as needed to achieve the desired amperage. for an s9 2 should do it;

https://www.amazon.com/Renogy-Tracer-Charge-Controller-100VDC/dp/B00E7NI9PE/ref=sr_1_3?ie=UTF8&qid=1468170133&sr=8-3&keywords=mppt+charge+controller

• Next change is to add a DC timer into the loop between the lamp controller out and the relay activation leads. This is one I like;
  
  https://www.amazon.com/MISOL-Controller-display-program-programmable/dp/B0090MTLFO/ref=sr_1_3?ie=UTF8&qid=1468173063&sr=8-3&keywords=dc+timer+switch
  
  Solar panels will hook to the charge controller unlike in the DC power supply only scenario. DC timer is programmed to start miners in the morning once there is normally good charging and off in the evening as you start to lose good charging conditions.

I would just throw together a 12v socket, relay and remote switch on it if you're not gonna be away for too long.

If you are you could find a 12v timer about like this one and wire it in accordingly.