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Use the pump curve chart on the link I sent to figure apx. what yield you will get from a given power input to the pump, given a known static water level. That should get you started. All those trees...do you have any ballpark idea of how much water daily you need in growing season? That will...

Yup. I wind up the spa timer for a few hours so I can safely go do other stuff and not worry about overfills, and it does its thing. I have two 1200 gal. underground potable tanks and one aboveground ag and yard use 2500 gallon. The potables are pumped to place of use by Shurflos. The ag...

Ah, that's better... https://product-selection.grundfos.com/products/sqflex/11-sqf-2-95027335?pumpsystemid=2364665785&tab=variant-curves Back in 2008, I did a "proof of concept" first run on my well with two 175W Suntech panels, some wire, and an empty milk bottle. No fancy controls needed.

I just tried a quick lookup of SQF 12 specs and I am not seeing a SQF 12 model in the solar series. Typo in your original post? Maybe one of the 1.2XXXX series?

Yep. The Grundfos control boxes are wayyyy overpriced. I built my own with analog meters, a wind-up spa timer, and a big toggle switch. You can get the pump performance curves from Grundfos and figure what panel capacity you will need vs. static level and GPM you want. SQF's are very cool...

Lineset connections. O-rings there.

Yup, we'll be "mining" the landfills where all the aluminum cans that folks are too lazy to divert to recycling wind up. And I hope that we can use solar and other renewables to do this: "thus many of theses physical resources will likely be re-used /recycled once the effort of obtaining it...

Because when you reach a certain lower pressure, the leak stops leaking or becomes so much smaller that additional leaking takes a lot longer to be noticeable. This can happen with a rubber gasketed connection. O-rings are flexible and can be "pushed around" at higher pressures then "snap...

Exactly the point I was going to make. We are running out of easily obtained resources. Those that are left will require considerably more effort to obtain. Those efforts might be ugly (some types of mining, refining, etc.). We should ALL do what we can to live small, and below (WAYYY below)...

I think this is what I am remembering: https://corporatefinanceinstitute.com/resources/management/microsoft-antitrust-case/ https://www.justice.gov/atr/us-v-microsoft-courts-findings-fact What surprised me at the time is why they didn't really, really, really fight on.

I used my FLIR to obtain mine. Still have the shots somewhere... LIttle hard to do when panels are on the roof at 51 degrees and 20 of that is the roof itself (have to lay on your back in the middle of the day in summer), but temps. I saw were definitely in the realm of "Yowza!". To get an...

The temperature that NIFE referred to is the CELL temperature, not the 107 AMBIENT. Cell temps. in Arizona regularly run 150 deg. F +.

Anybody else remember the Great Microsoft Web Browser (I think that's what the subject was) Federal Lawsuit of the 90's? It was pretty big news for awhile. Then, suddenly, IT WAS SETTLED and all went very quiet... Anybody care to theorize as to why? Windows is such a convoluted and bloated...

Nah, just a one-person business trying to get by... As such, it does feel like I am under attack from time to time. So maybe not so removed from those who serve.

Oh, yeah...I was laughing when I read it. So, mission accomplished. Just figured that it was another "pop-culture" reference this Neanderthal doesn't get. When I encounter those in crossword puzzles, I cross my fingers that I get enough letters filled in from things that I DO know that I'll...

Funny haircut?

Yeah, my bad for not noticing that. But getting parts is likely just as hard, if not harder. It isn't always easy even here.

Not correct. You can get it via the built-in display. You will need a MT-50 or the WiFi dongle to tweak all the settings - only the basics can be set with the two front panel buttons. You can manually step through the display info with the front panel button. You don't need to wait for what...

I have had really good results with various EPEVER CC's for many years now.

Looks like a cheap WalMart style inverter. Not worth the hassle. There's likely a lot more stuff blown that isn't apparent.

In the Good 'Ol US of A, land of Free Enterprise Run Amuck? Never. It's antithetical to the corrupt business model here. Can't have the unwashed masses getting something for nothing... I applaud what's going on in your neck of the woods with the energy retailers. Good show. And kudos to...

Ugh. Semantics. The bane of humankind. "When does when mean when?" In an engineering context, specifics do make a difference ;-)

Edit: I see others have responded whilst I was composing this. I am late to the party, as usual. ++++++++++++++++++++++++++++++++++++++++ "Everybody needs to remember that if the inverter is in use, you can not count "Idle consumption". It not at idle anymore if it's in use!" Ummm...maybe...

So, upon arriving back at my shop in the light industrial neighborhood after my first service call today, checked the dumpster next to where I park for anything interesting. Figured I would at least hook out a few aluminum cans for the recycle bin. Score! 3 sets of three-phase panel guts...

You should. if possible, disassemble the battery bank and charge each one individually to Float. Then reconnect them. This should help minimize the damage you have already done, but it won't undo it completely.

https://www.amazon.com/Voltage-Regulator-Converter-Waterproof-Transformer/dp/B089LRQM9Z I always oversize things. 10A is 2X what you are supposed to need, per the data sheet. You should check the voltage drop on that 100 ft. of wire. It would be better to run the 48V out to where the pump is...

Hah, ha. "shitty". Good one.

Yep, exactly right. Most folks don't realize that leach fields are not just about getting rid of septic tank discharge via perc. In dry climates, leach fields perc apx. 60% into the ground, the other 40% evaporates to the surface. If you remove the sun, you remove some of that evaporation...

"Danger, Will Robinson!" Don't assume this. Given his description of "off-grid cabin", he may have a RV diaphragm pump for fixtures in the cabin. Those definitely will NOT tolerate anything but the voltage they are rated for.

But tragically funny, as we certainly got fished in...

Faraday cage.

Although you didn't SPECIFICALLY say you were going to, don't direct bury it. You will regret that. Put it in conduit. I have been in the underground utility troubleshooting business since 1987. A big part of that is locating faults on direct burial cabling of various types. Low voltage...

This ^^ could likely be the problem. The freezer is designed to have its own internal thermostat cycling the compressor, NOT some external jobbie. On my Haier, if you unplug it while it is running, then immediately plug it in again, it won't start. It'll wait 5 - 10 minutes then fire the...

The lasers I have had experience with have used a 11" wide halogen bulb as the fuser heat source. That is effectively a DC short for a few mSec when you first fire it up. Nasty, nasty. Like an induction motor but without the inductive reactance. Most inverter manuals mention lasers as one...

It would make a pre-charge scheme of some kind necessary. Something that those of us with big LF inverters already have to do as they have those caps internally (hence the big spark if you connect a cable directly). The theory behind what the OP is proposing is sound IF the FET's in the...