San Antonio, Texas · 2025-12-09
A slow sink is a chore. A rising floor drain is not.
How to tell a slow sink from a sewage emergency in San Antonio, and what to stop doing until the line is clear.
San Antonio, Texas · 2025-12-09
How to tell a slow sink from a sewage emergency in San Antonio, and what to stop doing until the line is clear.

Most clogs are annoying. A few are emergencies. The difference is whether waste is coming toward you and whether more than one fixture is involved. A kitchen that drains slowly after a holiday is a drain cleaning visit. A floor drain that burps sewage is a sewer emergency.
Stop running water. That sentence is the entire first aid kit. Every flush and every shower adds volume to a line that already lost. People keep “just rinsing a glass” and then wonder why the tub is a pond.
Chemicals are not a personality test you have to pass before calling. In a hard-water city they often sit on a grease plug and etch the fixture. They also make the next mechanical clear more dangerous for the person on the cable. If you already poured something, say so.
A plunger is reasonable on a toilet with a soft blockage and a working vent. It is not reasonable on a kitchen full of cooled fajita grease. It is reckless on a toilet that is backing up from the main, because you are moving sewage onto the floor on purpose.
If two bathrooms fail together, stop treating flappers and hair. The stoppage has left the fixture. That is camera-and-cleanout territory. If the outdoor cleanout is spitting during a storm, the city system may be surcharged. Official storm and utility notes live on sanantonio.gov.
Rentals near Alamo Plaza see weekend clogs because guests treat disposals like trash cans. Write “rental” on the form so we know the line has had a crowd.
Hydro jetting is for grease and sludge once we know the pipe can take it. It is not the first tool on a sock. See hydro jetting for the honesty version of that service.
Sewage on a finished floor is an after-hours call. Keep kids and pets out. Open a window. Do not shop-vac sewage with a household vac you plan to use on a bedroom later.
This site will not post a fake “cleared in 11 minutes” review. Some clogs are a hair ball. Some are a collapsed hub. The cable tells the truth; a star widget does not.
When you request help, name the first fixture that failed and whether a floor drain moved. Those two facts route the call better than “drains are bad.”
A garbage disposal that hums while the sink stands full is not always a sewer. It can be a jam. Kill power before anyone reaches in. If the dishwasher just finished and the kitchen flooded, the knockout or the air gap may be the story. We look local before we declare a main.
Hair clogs in a hall bath are the most boring emergency that still ruins a morning. A zipper tool can buy time. It does not replace a machine when the clog sits past the trap. If you already tried, say how far you reached so we do not repeat a useless six inches.
If sewage reached a bedroom rug, treat the rug as contaminated. This is not a style article about steam cleaners. It is a health note. Keep pets off it. The plumbing visit and the cleanup are different jobs.
Roof drains and yard inlets are not the same as a kitchen line. If the backyard is a pond and the kitchen is fine, you may be in a grading conversation. If the kitchen is a pond and the yard is fine, stay on plumbing. Mixing those calls wastes a night.
A plunger on a toilet is fine. A plunger on a shower that shares a slow stack can move water into a tub you thought was innocent. If two fixtures talk to each other, stop plunging and start thinking about the main.
Write the first fixture that failed and the day it started. A kitchen that died after a holiday and a floor drain that died during a storm are different tickets. The form does not need a novel. It needs those two facts and whether anyone already poured chemicals.
Tell us the street, the fixture, and whether water is still moving. We will route the request as an after-hours call.