The water level rises when flushed but then it goes down again slowly. This means there is a blockage in the line but it's not absolute. There is still a small amount of room for the sewerage to get through.
Highlights. A toilet that overflows and then drains completely is a sign of clogged rim jet holes.
Low water level is the most common reason for a slow draining toilet. The water being below the recommended level can cause the toilet to not flush correctly. This will vastly decrease the flushing power of your toilet. More water in the tank allows for more force being used to flush.
Common causes of a slow-flushing toilet include low water levels, a partially clogged drain, mineral build-up on the jet holes, a defective flapper, and a blocked drain vent. To help solve your problem, take a look at the in-depth breakdown of these toilet issues and the possible fixes below.
A plunger is a great tool for unclogging toilets and can be bought at most hardware stores. Ensure the plunger is completely covered in water before pushing it down into the drain. Pump the plunger up and down for about 15 seconds before pulling it out.
If you find that your toilet bowl still drains properly — but slowly — then the issue may lie in the jet holes that surround the rim of the toilet bowl. The build-up of sediments and minerals along the side of these holes can gradually reduce the water pressure released with each flush.
Clean Clogged Jet Holes
Clean the jet holes with vinegar or dishwashing soap. An alternative to cleaning the jet holes is pouring vinegar down the overflow tube. Let the vinegar sit there overnight. Flush the toilet the next day.
Sediment can build up over time, and a good cleaning may fix the issue. If the exterior of the fill valve has mineral buildup on it, use vinegar and a toothbrush to clean off the sediment.
The problem is usually in the fill tank. If the water level in the tank is dropping, check the flapper. If it's not sealing the flush valve opening, water from the tank will leak into the bowl, and the toilet will run constantly to keep the tank filled. Replace the flapper as needed.
Have you ever experience the water in your toilet bowl draining by itself or the bowl just can't hold the water? This is a potential sign of a clogged vent inside your walls. Vents are simply pipes connected to all your toilets, tub drains, and sinks and leads to the outside of your home through the roof.
OPEN HOT WATER TAPS AROUND THE HOUSE UNTIL YOU SMELL VINEGAR. After, close off the water taps and let it sit for at least 6 hours. During that time, the vinegar will hopefully eat away at the scale within your pipes as well as the scale at the bottom of your water heater.
The more times you flush, the more wear that happens to the toilet valve. This can cause the fill valve to move out of alignment or otherwise experience problems. These toilet valves can also become dirty or clogged when debris builds up inside of them.
Toilets can develop drain clogs for any one of several basic reasons, usually involving partial or complete obstruction in one of the various parts of the drain system: the toilet trap, the branch drain line, the vent pipe, or the main sewer line.
Over time, flappers wear out, which allows water to continually drain from the tank. The result is not enough pressure released at flush to completely empty the contents of your toilet bowl. You can fix this problem by replacing the flapper. It is easy to do with any standard flapper purchased from a hardware store.
One of the most highly regarded toilet models for its flushing power is the TOTO Ultramax II. This toilet features TOTO's Double Cyclone flushing system that uses two nozzles to create a powerful, centrifugal rinsing action.
There is only one Drano® product recommended for use in slow-running toilets: Drano® Max Build-Up Remover. It contains microorganisms that break down organic matter in pipes that can slow water flow.
Baking soda and vinegar can serve as a natural solution to unclog and clean a stinky drain.
Use Baking Soda and Vinegar
Pour a ½ cup of regular household baking soda into the drain, then add a ½ cup white vinegar. Cover the drain if you can. Let the mixture stand in the drain for several minutes. Next, to remove grease and debris in your pipes, pour five or six cups of boiling water into the drain.
By running the cold water for 40 minutes, you ensure that it flows through the hot waters pipes and flushes the sediment out through the water heater drain hose. Repeat these steps with all other water connection, such as the laundry connection.
If water is rising in the bowl immediately after you've already flushed, that means a clog is blocking the water from moving through the toilet drain. If you flush again, there will be even more water that's unable to make it past the clog, and you'll end up with even more flooding from the toilet bowl.