Yet another pit-less adapter question

[Horseflyjill-of-all-trade]

Can anyone help me identify this pitless adapter? My neighbor asked for help reinstalling it. We used a camera to locate the hole and lined everything up, but we couldn’t figure out how it’s supposed to slot in. At first, we expected it to just slide into place, but it didn’t.





After doing some research, I’m starting to wonder if this might be a spring-style adapter—and none of us have worked with one before, so we might be missing something about how to install it. Before learning about spring adapters, we assumed the female end had broken off in the well when he removed it. We’ve got our respective excavators lined up to dig and install a new pitless adapter tomorrow, since this well supplies water to 20 people.





I’d hate to go ahead with that if this is just a case of user error. Any insights or ID help would be hugely appreciated.

 

[Valveman]

Says right on the side its a "Wells". Those don't slide in. That trigger on the back pushes the pitless against the casing to seal. Probably better off switching it out to a standard slide type pitless.

 

[Sponsor]

 

[Reach4]

This will hang from a hanger bar, and the length of the pipe from the hanger to the pitless must be set to get the right height.

The Merrill MCK/SMCK are similar. https://pimmedia.winsupplyinc.com/pim/INTA/112017/MERRILL-MANUFACTURING_MCKOR_0760MCKOR_INTA.pdf

That leg is operated by rotating a tool passed thru the 1 inch schedule 40 galvanized or schedule 80 pvc hanging pipe to that thing in the top. There is a tool made for the purpose, but I have read that you can make your own tool by smashing the end of a 1/2 inch schedule 40 galvanized pipe.

Because there is not a piece permanently attached to the inside of the casing, it seems to me that you might be able to substitute an SMCK for the inner part. The existing piece may be perfectly OK as is, once you get the right o-ring. https://kscdirect.com/item/MER+MCKOR/MERRILL+MANUFACTURING_MCK+HEAVY+O-RING is the o-ring for my SMCK should I ever need one. But as far as I can tell, that Wells unit is still good.

Regarding the Wells pitless, see

Looking for a replacement part for this pitless adapter.

Looking for a replacement part for this pitless adapter. The lever / cog is cracked. Can anyone help me identify the brand/model ? And tell me if I can just replace the lever?

terrylove.com

You may be able to contact them to order an o-ring.

When dealing with static o-rings, I would lube them with Molykote 111 silicone grease. It is thicker than release compound, which is considered better for sliding o-rings and pistons.