The pipe you cut out is the only prop in this city you own outright
There is no yard, no tailgate and nowhere legal to park, so the studio is your shop bench and the material is what came out of the building.
Filming on site here is difficult and often not yours to authorize. Inside an occupied building the space belongs to a board, an owner or a tenant, and the hallway is not a set no matter who let you in the front door.
The section of pipe in the back of the van is a different matter. Cut it in half, put it on the bench, and let people look at what actually closed the line: scale, corrosion, a joint that gave up decades ago.
A prewar building supplies visuals nothing else does. A choked galvanized branch, a section of a waste line off a brownstone, a radiator valve worn past sealing. All of it films well under one light, at your own pace, with nobody's permission but yours.
Bench footage also solves the practical problem. A tech carrying tools up five flights cannot also carry a camera, and a phone that comes out on a job is a phone somebody has to justify to a managing agent.