If your shower has weak pressure, goes hot to cold suddenly, or never gets fully hot, the cause is almost always the same: Sediment is blocking the shower’s internal components, branch lines, elbows, or cartridges — restricting flow and disrupting temperature control. This is extremely common in Chicago, Oak Lawn, and Oak Park, especially in older homes and multi‑unit buildings. Why Sediment Gets Into Your Shower Line Sediment enters the plumbing system during everyday city a