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Daily Discussion Thread: Mon 18 Sep 2023
(aussie.zone)
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this post was submitted on 17 Sep 2023
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Day awf so gonna get a bit more of the watering system done.
This thing will hopefully save a shitload of time.
But doing the mafs, 1 hr of run time will deplete the 8000l of water tank by 15% each go which means it has to go on town water which is a bit disappoint.
But also in doing the mafs, if it fails it's just mind boggling how much water there is at full tilt.
does it *need *to run for an hour? how many drippers, what capacity? What's your rain sensor situation? I've run on half that capacity with less loss.
It'll be 250m-ish of dripper 0.3 spacing 2L emitters 600 kPa at mains. No rain sensor. 3 zones so swimming in pressure but my concern is pumps running dry on the tanks.
edit: I should add the concept of this is life support and it's probably not going to be a complete solution. It's the p's place, big garden, they're not interested in new and fangdangled so I'm winging this a bit (for better or worse).
You can get dry run shutoff pumps, but may not be feasible depending on your setup. You might actually already have one, they're pretty common on rainwater tanks.
If it's just life support, drop it down to 15-20 mins. You're pump fed, don't need to give time for gravity to feed through the lines.
As the owner of a 750l water tank, that sounds like a lot of water.