>>2794118
> manlet who can't lift a deep well pump by himself
A pump that deep, 250ft, requires a truck with the equipment to pull it. This isn't your grandma's 25 ft hand dug well. The way I've witnessed it done, pump removed and reinserted, was with hard pipe in sections. Hence the rigging to hold it. Maybe a poly pipe setup, at 100 ft, would be manually manageable.

> I have no idea
I asked you.

> Adding a 5000 gal tank plus 2 more inverters to run the pump

You're mixed up. Let me unconfuse you:

If adding a ground level or slightly raised (for backup gravity feed) tank, you do not also need to make any changes to a simple 3kw system that has 200ah/10kw of batteries. That's the point. Somehow you got the tank confused, with powering the existing well-pump.

To run the existing 3 phase pump, alternatively:
2 more inverters for 3 phase means more batteries to handle the surge capacity. Technically, 3 inverters can start on a shared 10kw battery array. There's the $1600, plus $6000, for 2 more inverters + 4 more batteries, to reach a 9kw surge capacity, although yourself said it would be up to a 10kw surge on startup.

I know a large tank, plumbing, and a suitable single-phase auxillary pump can be DIY'd for less than $7600. And it's a lot less dependent on electricity, at all. Sure, it's not a 100% replacement for powering a $1000 soft-start well pump that still needs 3-phase, but in most circumstances, if power is out, it's intermittent or up to days at a time. This puts the water issue in the correct direction, because even with the Grundfos soft-start and enough 3-phase power to start and run it, you still don't have any available ground-level or higher water storage capacity. Yes, there's the toilet, bathtub or sink. Or a stock tank. Assuming you know in advance that the power will be out or the system will stop working, which you won't. And you don't mind drinking from where the cows do - who consume 35 gallons a day, each.

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How did you DIY your weekend: Solar Edition