Axial magnetic pump coupler. Grundfos uses a radial version of the same concept.

Got a lot of rain the the past two days. My pond level being kept in check with this overflow pipe. I still have more work to do on the berm and I can raise the overflow as that progresses.

Florida is one state where you are required to be connected to power. That means a monthly minimum bill. They also want to charge solar grid tied system people an additional $25 a month extra “to cover the cost of providing service to low usage customers.” Wait wasn’t that what the min bill is for???

Folks as power companies are changing these grid tied rules you are better off to simply install a system with batteries that doesn’t sell power. Just use the grid to charge batteries if you need a little energy.

Here's a heat exchanger for a geothermal heat pump... in a pond. https://www.youtube.com/watch?v=jYS2wPWPEPI

She shoots better than half of you

WAGO connectors for DINRAILS. https://a.co/d/cYCj4Zx

A cowboy friend of mine, half my age, but already twice the man has a saying. He says it a lot.

"You can steal my money, and I can probably forgive you. You can take a cow, and I'll figure you for hungry, and we'll work something out. But if you steal my time? If you steal that, God help you cause there ain't no forgiveness down that road with me. Don't take anything I can't replace, or it won't work out well for either of us."

That's a lesson I wish I'd learned at his age.

A local guy came by yesterday to consult about his solar setup. He revealed to me that he’d been connecting the pv wires inside a jbox and had stabbed himself in the finger with 360vdc.

The solution for this is to disconnect any two panels in the string, do the work and then reconnect them.

A word about generators and solar. If your system is grid tied or you otherwise use AC coupled inverters, make sure your generator idles at 3720rpm 62hz (3120rpm 52hz in Europe).

The reason for this is that when grid tied inverters see 60hz (50hz) they will synchronize with it and make all the power they can. They will happily backfeed your generator and harm it.

If the generator is idling at 62hz (52hz eu) the solar inverters will see this as either "out of spec" or "make 0 power" and not back feed your generator.

Older grid tie inverters will not sync when the frequency is >60.5hz. Newer grid tie inverters will make full power up until 61hz and throttle back power as the frequency rises to 62hz.

Attached is a screen shot of my battery inverter throttling the grid tie inverters.

Fire drill time:
Tonight while your wife and kids are watching TV, go outside to the highway. Approach your house as if you were going to rob it. Look at your house from an outsider's perspective. Could you look in the windows without anyone noticing? Could you have kicked in the back door? Think about how attractive a house with lights on would be after SHTF. Think about how far the smell of bbq can carry.

So how defensible is your house? How attractive is your house (in the wrong way).

Something to think about.