Clay tile, cast iron or PVC: what is under your Wichita house

Wichita properties have one of three lateral materials and the age of the house is the best first guess. Clay tile went in through roughly the 1950s, cast iron overlapped and ran later, and PVC took over from the 1970s onward. Each fails differently and each needs a different repair.

Clay tile fails at the joints. The pipe body is durable and often still sound after eighty years, but the short sections and their joints shift in expansive Kansas clay soil until roots find a way in. Repair usually means replacing sections or lining the line.

Cast iron fails from the inside and from the bottom of the pipe first, where waste sits. It scales internally, narrowing the bore, and eventually the invert corrodes through while the top of the pipe still looks fine on camera. That is why a cast iron line can pass a casual look and still be at the end of its life.

PVC rarely fails on its own. When it does, it is nearly always a joint that was not glued properly, a crush from settlement or excavation, or a belly where the bedding was inadequate. Those are point repairs rather than full replacements, which is why identifying the material first genuinely changes the price.