Hydro Jetting in Old Town Tustin

On modern plastic, yes, and usually unnecessary. On old clay it is both the right tool and the real risk: it is what actually removes roots, and it is also what finishes off a joint that has already opened. That is why nothing old is jetted here before it has been seen inside.

Where grease was the cause, years, because it starts from a clean wall rather than a hole through the deposit. Where roots were the cause, an interval rather than a fix — they return through the same joint, and the honest question is whether that interval is worth more than repairing the joint once.

Three free ways, in order of how much they tell you. THE AGE OF THE HOUSE gets you most of the way: pre-war here usually means clay, mid-century usually means cast iron or early plastic, and anything since the 1970s is almost certainly ABS or PVC. THE CLEANOUT OUTSIDE is the one part of your lateral you can actually see — a white or black plastic cap is modern, a threaded brass or iron one is not. AND THE HISTORY: a line that has never blocked in thirty years is telling you something about its condition regardless of material. If those three still leave it unclear, a camera at $150 to $350 answers it permanently.

In Tustin, that depends on your address more than it does in almost any city in Orange County — because this one holds about 140 years of plumbing inside its limits. The historic buildings on Main Street and El Camino Real date to the 1880s; Tustin Legacy has been building since 2003 on the 1,153 acres of a Marine air station that closed in 1999. An original clay lateral is jointed every few feet and open to roots at every one of them: it benefits from attention and eventually wants replacing. Modern plastic has sealed joints, does not scale and does not corrode: there is nothing accumulating in it between blockages, so scheduled cleaning removes nothing. Same question, same city, opposite answers.