Unknown plumbing device

[Rick Vernon]

Has anyone seen one of these. Sealed, metal, has serial number on it.
Printed on it was:
Original technology-Grunder
made in Austria.
Google didn't help.

Installed on home side after water meter

Thanks in advance!

[John Arnold]

I wonder if it's some kind of magnetic doohicky that's supposed to remove toxic goobers, or whatever, from the h2O? Did you check it for magnetism?

[Rick Vernon]

John, no I didn't think about magnets but I had the doohicky part figured out!

[Ron Bibler]

Looks like a home built thing.

Ron

[John Arnold]

Looks like a home built thing.

Ron

Dude. Seems unlikely if it says "Original technology-Grunder
made in Austria" on it.

[Wayne Carlisle]

Some type of water hammer device?????

[Michael Thomas]

Well, one google hit is for "Isochronous Cyclotron Technology" :)

[Billy Stephens]

Looks like a home built thing.

Ron


Dude. Seems unlikely if it says "Original technology-Grunder
made in Austria" on it.
.
Mr. Grunder could live in Austria, maybe he's just Visiting. :D
.

[Brandon Whitmore]

My vote's for some random water hammer device. I glanced through part of what Fritz posted, but don't want to read through what was posted.... hence the water hammer guess.

[Raymond Wand]

In order for a water hammer chamber to work I though it had to be at the end of the runs? Perhaps it was installed to capture sediment? But there appears to be no way to clean out or open the box.