NO plumbing code would dare say use a globe valve under ground that has no access to service it?
Under ground to everywhere in the house plumbing ( everywhere )
The installation of water /waste / vent and under ground piping prior to the walls closed and the finish Plumbing is when fixtures are set and tested
Do a Google search under swimming pool plumbing designs, or swimming pool plumbing (or pipe) layouts, or schematics... somewhere in the top ten will be a beautiful picture of what you want.
Nothing has replaced the plumbing system under the Colosseum. It is still there.
The mechanical devices used in the Globe Theatre were things like trap doors and things that made people flying or made them come up from under the ground like hanging wires.
A leak. It could be a plumbing leak; are there any bathrooms or other plumbing nearby? It could also be a roof leak; don't rule that out! Another possibility is a leak from high ground water or foundation leak. Check everything you can think of.
Fire sprinklers and supporting pumps are considered "plumbing".
it is hot under ground because volcanos are under ground
take a cap cover it with paper and paste it under the globe.
That is the underground drainage plumbing under a concrete floored dwelling, which has to pass inspection before the concrete is poured.
under ground
get rid of the concrete! / get a plumber!