A toilet that refills when nobody flushed
Most toilet calls in Lakeland and Plant City start the same way. The tank refills by itself, the bowl stays down, and the water bill moves. That is a flapper or a fill valve. A bowl that climbs to the rim is a different repair.
True Plumbers & AC repairs toilets under Florida plumbing license CFC1428965. We work in Lakeland first, then Plant City, Winter Haven, and the rest of Polk, eastern Hillsborough, and southeastern Pasco.
A toilet that keeps running
Lift the lid. If the water in the tank is moving and nobody flushed, the fill valve is open because the tank is losing water, or the valve itself will not shut. Both run the meter. The bowl can look normal the whole time.
Shut the angle stop on the wall behind the toilet if the tank will not stop. That valve feeds only this fixture. The rest of the house stays on. Then use the dye test below before anyone sells you a new toilet.
The flapper and a dye test
Put a few drops of food coloring in the tank. Do not flush. Wait ten minutes. Color in the bowl means tank water is slipping past the flapper, the rubber disk at the bottom of the tank. The fill valve hears the level drop and opens again. That is the cycle at 2 a.m.
Polk County water leaves scale on the seat the flapper has to seal. A new flapper on a rough seat can leak again. On a repeat runner we replace the flapper and clean or replace the flush-valve seat in the same visit. The longer write-up is on why a toilet runs.
The fill valve
No color in the bowl, and you still hear a hiss, points at the fill valve. The float is set too high, the valve is worn, or scale is holding it open. Water then spills into the overflow tube on purpose. The supply never shuts off. That hiss is clean water, not a sewer smell.
A fill valve is a stock part. We quote it before we install it. The toilet stays. If the supply line at the wall is spraying, that line gets replaced with the valve so the connection is new on both ends.
A wax ring when the toilet rocks
A toilet that rocks on the tile is a wax ring or a broken flange, not a running tank. Water shows up at the base after a flush, sometimes only as a dark line in the grout. Tightening the closet bolts on a rocking toilet cracks the porcelain.
We pull the toilet, look at the flange, and set a new wax ring. If the flange is broken below the finished floor, that is the repair, and the wax ring goes on after the flange will hold. Leave the bolts alone until someone has seen the flange.
A toilet that runs after every flush
A toilet that refills and then keeps running for a minute after the flush is often the chain or the flapper timing, not a clog. Too much slack and the flapper drops late. Too tight and the flapper cannot seat, so the dye test comes back positive even with a new disk.
A handle you have to hold down is the same chain. We set the slack so the flapper lifts and then drops flat. If the handle is broken at the tank wall, that is a separate part and a ten-minute swap once the chain length is right.
Water in the bowl versus water in the shower
A bowl that fills to the rim when you flush is a clog in that toilet. Stop flushing. Another flush puts water on the floor. A plunger is the first try when the water is still in the bowl. Drain cleaning is the visit when the plunger does not move it.
Water that rises in the shower or tub when the toilet flushes is the main line. Stop using every fixture. That is not a flapper. If sewage is already in the tub, it is an emergency plumbing call, and the page for the backup itself is sewer backup.

Hard water and a toilet that needs the same part again
Lakeland and Plant City water leaves scale on the flapper seat and inside the fill valve. A house that replaces the same flapper every season is looking at the seat and the valve together, not a third flapper from the same bin.
If every fixture in the house has crust on the aerators and the water heater pops, the toilet is one symptom. The house-wide fix is on the water softener page. We test before we talk about a softener. A running toilet still gets the flapper or the valve the day you call.
When the toilet itself is the repair
We replace the toilet when the tank is cracked, the base is cracked, or the bowl will not clear a normal flush after the clog is gone. Current toilets are built to a 1.6 gallon flush. We do not quote a yearly gallon savings. The bill change depends on how often the old toilet ran and how many people use it.
Call (863) 667-6364. Say whether the tank refills by itself, the bowl rises, or the shower rises. That one detail is the difference between a flapper and a main line.