Slab Below, Cast Iron Below That: Reading a Richardson Water Loss

A Richardson water call is usually an age call. The city built its housing in two decades on slabs over clay, with cast-iron drains underneath, and that assembly is now fifty to sixty years old. The water events follow from it: pressurized lines leaking into the soil under the slab, drains narrowing until a fixture backs up, attic lines splitting in the freeze weeks the houses were not designed around. Naming the assembly in the first conversation is what separates a scoped job from a guessing one.

The slab changes the physics of every loss. Water does not stay where it lands; it saturates clay, travels under walls, and returns through the floor for days after the source stops. That is why Richardson drying is a readings discipline: baseboard and slab edge meters, logged daily, decide when the equipment leaves. A crew that prices the room without reading the slab has priced the visible half of the job.

The claim follows the same split. The sudden failure is the covered case; the pipe itself usually is not, and the backup turns on an endorsement many households meet for the first time in a wet bathroom. The Richardson habit worth building is meter literacy: read the meter in a quiet house twice a year, walk the floors barefoot for warm spots, and ask the endorsement question in a dry month, when the answer can still be changed.