Automatic Greenhouse Watering Part 2 – It Works! And Then I Broke It! - ndbatteries.com

Automatic Greenhouse Watering Part 2 – It Works! And Then I Broke It!

Atomic Shrimp
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The second instalment in my bumbling journey to set up a low-budget automatic watering system for my greenhouse. This time, with some success, but also with added failure!

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280 Comments

  1. Theres a great one my dad has that plugs onto your tap and works from mains pressure it just blocks water untill you want it on a timed clock, ill try to find the link for it

  2. Nice video as always! My two cents would be a solution that sprung to my mind.

    There are small aquarium pumps that doesn't seem as flimsy, why not use one of those in conjunction with a timer outlet? You could even adjust the flow rate on these.

  3. Get a third one for dispensing fertilizer!

  4. Watching your videos feels like seeing a glimpse of myself in 25 years. <3

  5. If anyone buys this after watching your two videos they have far more money than sense.

  6. Maybe look for pumps made for aquarium top off. They seem to do basically what you are trying to accomplish, but you can find very good quality ones. More expensive than this pump, but less expensive than running a water line.

  7. Sounds like you need an autopot system for the greenhouse. No power needed and runs from a reservoir

  8. Seems those motors are prone to developing burnt brushes or dead spots on the commutator. They are simply a tad too cheap for the job. They should be replaceable with a bit of soldering though.

  9. I like this series of videos. Please keep it going! You could even get it to where you don't need to water your plants manually, only to bring a new jug of water from time to time.

  10. Use mains water pressure to fill a header tank with a ball-cock. Then control the flow rate with the tubing?

  11. It would be cool to integrate a siphon into the watering system!

  12. all you really need is an aquarium pump, a battery and a timer (not a kitchen timer but so called industrial type) all of witch is in a great variety on the internet, you just need to correctly match voltage and current of all three to avoid malfunctions.

  13. Cultivate your neighbours, watering your garden whilst you're away is what they're for. Thanks for the content.

  14. why not use a fish tank pump with an arduino timer? this does teach people why not to buy cheap junk though.

  15. Might be freezing damage, don't know how that first one has came to UK and where they have kept it?

  16. curious what bigclive would make of this :O it seems like the motor is just too cheap/weak for the application

  17. I think that a more continuous and consistent flow could be achieved by preventing sucking of the air with water as the case with stopping the flow to fill the bottle and letting the full bottle empty. To do so, a simple siphon setup should be enough. Just a single loop of the rubber hose whose top is above the lowest point of the bottle reservoir should be enough.

  18. why don't you test on the voltage input motor?
    if it is there, just buy a low voltage relay and new pump

  19. Raspi is a) overkill, and b) too power hungry for a 12v lead-acid battery+Solar arrangement.
    ESP32 is probably the lightest-weight, but I'd be very tempted to hoick the 'busted' motor off the good board and replace it with a relay to switch a smaller pump.

  20. Frosty Jack's with a drinking spout! What a disturbing idea!

  21. This is not only incredibly interesting to watch, but makes me want to do this kind of domestic engineering on my own. Great video!

  22. Part one of this series was exactly 27:06 and this video is 37:06… shrimp did you do that on purpose?

  23. Somehow this should be named: Engineeringshrimp – In the next step the pump will get WiFi and can be integrated into Homeassistant. 😀

    I really hope that his system will do what you aimed for or that someone in the comments will let you know of one.
    Really enjoyed this video, hope there is more from "that category".

  24. Diaphragm pumps are fine for water, as soon as they are build to hold it in the pump🤗 It's just that these pump is crap. Buy a proven one.
    Btw i am pretty sure you got ripped of. This pump is worth no more than 5 bucks.

  25. 26:00 Nah. Visit Blumat from Austria and get yourself a bunch of Tropfblumaten.

  26. May get a windscreen washer pump from a car for cheap to free – better quality and works with battery voltage

  27. you could have used the rusty motor from the 1st purchase with the "pump guts" from the 2nd purchase
    (me watching 5 minutes on) …. oh you did, well done

  28. Fun fact: this pump is what CoinSquirt uses for transaction handling

  29. more Ava in video's please, love that lil doggo ❤

  30. Try a submersible pump for a caravan or tent to do the lifting.
    Obviously you need a timer but that shouldn't be hard to find.

  31. This video really hit home; I don't know how many times I've bought stuff for a project of similar scope and it hasn't been up to scratch, or, equally as often, I've made a silly mistake and killed the thing…

  32. Have you considered renaming your channel 'Atomic Womble'? Thanks for your litter-picking work.

  33. Time to take an EcoFlow or Jackery sponsorship

  34. Saw Frosty jack's and thought BigClive was going to pop in and Sodastream for us.

  35. An empty bottle of Frosty Jacks in a ditch is just so quintessentially British

  36. You could buy another pump and have another and have another big bucket of water going from that into your main water water pump so that as one so that as 1 empties it refills the 1st 1 that is feeding your plants

  37. 2 big buckets of water pump takes water out and refills the water that comes out of bucket watring your plarnt

  38. Hi Mike,

    The battery probably can run just fine without continuous charging. Fundamentally, all the pump is doing is moving 4 litres of water from one elevation to another – it's very simple to calculate how much energy this would take. We know the volume of water used is about 4 L and I'll say the height change is about 2 metres.

    The work done by the pump is given by the change in pressure multiplied with the volume of water moved. Since the pump is only fighting gravity (I'll neglect any pump inefficiencies for now), the change in pressure is given by water density * acceleration due to gravity * height change, so 1000 kg/m^3 * 9.8 m/s^2 * 2m, giving a pressure difference of 19,600 Pa. Thus, 19600 Pa * 0.004 m^3 = 78 J of work is done.

    The capacity of an 18650 battery varies, but according to a website called Fogstar, they have a nominal voltage of 3.6 V and capacity between 1800 and 3600 mAh. This gives a total energy capacity of 3.6 V * (1.8 * 3600 As) = 23,000 J. That's a lifetime of 297 days!

    Obviously, the pump isn't perfectly efficient, but it's unlikely to be so inefficient that it would use up the battery's capacity in a few days.

    All of this being said, there's nothing wrong with your setup with the solar panel – peace of mind is just as important as any other consideration here.

  39. I doubt they test, mor elikly the earlier one was a return from a dissatisfied customer.

  40. It might be worth considering a simple drip irrigation system in the future. If you can suspend/make a pile of stuff to hold the larger reservoir high enough, you can run a pipe from it straight to your plants, and mediate the flow by stuffing the tube with a wad of wool held in by a bit of wire, or a simple valve if you want to get fancy.

    Probably less precise than the pump, but if you want something simple and future proof it might be better suited for your needs.

    Looking like a lovely garden!

  41. I'm glad you've found a solution to avoid finding a local urchin….. (made me laugh)

  42. Loved this video! I'd really like to see how that works out, and how you modify the system.

  43. You can reuse the electronics. Remove motor, connect suitable relay. Let relay turn on/off external pump

  44. cant you do a diy version with a regular water pump and a raspberry pi?

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