Stop the water first, then work out where it comes from
Close the small supply valve at the wall by turning it clockwise, and stop flushing. If the bowl is full and rising, do not keep trying. Mop up and put a towel at the base so you can see whether new water appears.
A leak at the base that appears only when you flush points to the wax ring or the bolts. A leak that shows up all the time points to the supply line, the tank or condensation. If you cannot tell, call (562) 488-9614 and our dispatch can book a visit.
Match the puddle to the cause
Check when the water appears and where it sits. That alone narrows the list.
| What you notice | Most likely cause | Fix |
|---|---|---|
| Water only after flushing | Failed wax ring or loose closet bolts | Reset the toilet with a new ring |
| Water appears with a clogged bowl | Blockage backing up through the base | Clear the clog, then recheck |
| Constant drip at the wall | Supply line or shutoff valve | Tighten or replace the supply line or valve |
| Beads of water on the tank, dry at the base | Condensation | Dry it and watch, often seasonal |
| Toilet rocks on the floor | Loose bolts or uneven floor | Reset with shims or tighten bolts |
| Drips from the tank bolts | Tank-to-bowl gasket or bolts | Replace the gasket set |
A slow, steady puddle over days is a repair, not a mop job.
A careful way to test it yourself
You need paper towels, a flashlight and about 15 minutes. Do not unscrew anything yet.
- 1
Dry everything
Wipe the base, the supply line, the shutoff valve and the tank. Lay dry paper towels around the base.
- 2
Check the supply line
Hold a dry tissue to each fitting on the supply line and valve. A damp tissue tells you which fitting weeps.
- 3
Look for condensation
Cold water in the tank can make the outside of the tank wet on a humid day. If the tank is wet but the base stays dry, that may be the whole story.
- 4
Flush once and watch the base
Flush and watch for water seeping out at the floor line. If the paper towels get wet, the seal is failing. If the toilet rocks at the same time, the bolts are loose.
Water at the base and a bowl that will not drain?
Shut the supply valve and call. We can clear the clog and reset the toilet in one visit when parts allow.
Pico Rivera water and housing: what it means for you
A toilet that leaks quietly can show up first as a higher water bill. Per the city's service provider page, billing questions go to the Water Division at (562) 801-4316 if you are in the city-served area. Homes outside it are served by Pico Water District, reachable at 562-692-3756.
If you are not sure who bills you, use the address lookup on that page. Then try the high-bill meter test with every fixture off for two hours. A moving dial makes the toilet one of the first suspects, and our Leak Detection team can confirm it.
Why a clog and a leak show up together
A clogged toilet and a leaking base often have the same root cause.
Backed-up water finds the weakest seal
A blocked drain pushes water up and out, and the wax ring is often the weak point. After the clog is cleared, the base may stay dry or it may keep weeping.
Repeated plunging loosens things
Pressure from plunging can rock the bowl and break the seal. If the toilet shifts, it needs to be reset.
Old rings dry out
A ring that has dried or flattened over time may only leak once pressure builds up in a clog.
A clog that comes back signals a deeper problem
If clogs repeat, the issue may be farther down the line. Our Drain Cleaning crews can check.
When to replace the wax ring
Replacing a wax ring means pulling the toilet. Here is when it is worth doing.
- Water appears at the base after every flush.
- The floor around the toilet feels soft or looks stained.
- The toilet rocks even after tightening the bolts gently.
- A sewage smell lingers near the toilet.
- The toilet was just removed for floor work or a new flange.
- Dye in the tank shows color in the bowl, which is a separate flapper leak.
The EPA dye test needs only food coloring in the tank and a 10-minute wait. A positive result means the flapper leaks, not the base. Our Toilet Repair crews handle both, and you can reach them at (562) 488-9614.
When the floor is already damaged
If the subfloor around the toilet is soft or the flange is cracked, a new ring alone will not solve it. A damaged flange or floor needs repair before the toilet is set again. Ask for a written scope and a clear price before work starts.
Homes in Montebello and Commerce built in the 1950s and 60s may have had bathroom updates over the years, so the flange or floor can differ from room to room.
Standards and sources behind this page
Provider information comes from the City of Pico Rivera, and the dye test from EPA WaterSense guidance.
Questions we hear most
Not for long. A slow leak can soak the floor underneath and cause damage that costs more than the repair. Shut off the supply valve until it is fixed.
Condensation forms on the outside of the tank on humid days and does not appear at the base. A leak keeps returning after you dry everything.
It can be, but you need to lift a heavy fixture, scrape the old wax and reset the toilet evenly. If you are not comfortable lifting it, call us.
Flushing sends a surge of water through the seal. A failing ring or loose bolts allow some of it to escape at the floor.
Not usually. A new ring, bolts or a supply line often solves it. Replacement makes sense if the bowl is cracked or the toilet is very old and keeps failing.
Start with whichever utility bills you, the City Water Division or Pico Water District, whichever serves your street. Ask about meter readings and any adjustment policy. Then have the toilet fixed so the leak stops.
Yes. Our dispatch is open 24/7 at (562) 488-9614.
Dry floor, working toilet
Pico Rivera Express clears the clog, finds the leak and resets the toilet. You get a clear price before work starts.