A leaking toilet can damage to your bathroom waste your water. If you notice a leaking toilet base, you should fix the issue as soon as possible. The leaky toilet base problem means the connection between the toilet and the sewer outlet, called a closet flange. This part of the toilet is usually sealed by a wax ring. The function of wax ring can prevent leaks and sewer gases to enter your home. If your have a running toilet base, you can tighten the closet bolts or replace the wax ring to solve the problem.
What tools we need prepare to fix the leaky toilet base?
Towel and sponge
Replacement closet bolts
Plumber’s tape, if needed
We can do two steps to fix the leaking toilet base.
Tighten the flange bolts
1.Remove the plastic caps that cover the closet bolts at the base of the toilet. Slide a putty knife under them and pop them off.
2.Turn the bolts clockwise with a wrench to tighten them.
3.Flush the toilet. If the toilet is still leaking,we need replace the wax ring.
Replace the Wax Ring
1.Shut off the water and flush the toilet
Shut off the water at the inlet valve. Flush the toilet to drain as much water as possible from the tank and bowl. Clean out remaining water with a wet/dry vacuum or by using a plunger to push it down the toilet drain. Use a large sponge or towels to absorb the remaining water.
2.Disconnect water supply line
Using an adjustable wrench to unscrew the water supply line connects to the underside of the toilet’s tank. If you find a rounded surface rather than flat edges where it connects to the tank, use pliers to get a grip in place of a wrench. You should drain the water inside supply lines to the bucket to keep the floor dry.
3.Prepare for liftoff
Trim caps on either side of the base of the toilet cover bolts that fix the toilet to the floor. Pop the two caps off with a flat head screwdriver by putting the blade edge of the screwdriver under each cap and twisting. Use your adjustable wrench to remove the nut from each flange bolt, then remove the washer, and a plastic disc below it which held the trim cap in place.
4.Pulling off the toilet
For the best leverage and least strain to you or the toilet, bend at the knees and, holding the toilet beneath the bowl, lift it off the two bolts. “You don’t want to use your back at all because you know the toilet has some weight,” Aynes says. Though typically less than 100 pounds dry, you can hurt yourself or do damage to the toilet by lifting improperly. So proceed carefully. Lay the removed toilet gently on it’s side atop an old blanket or towel.
5.Inspect the flange
Use a putty knife to scrape away as much of the old wax ring as you can from the flange, a pipe fitting where the toilet mounts to the floor, and around the toilet drain. Remove any debris, smooth and dry the surfaces, and remove the two bolts from the flange.
Look closely at the condition of the flange. If it’s cracked or broken, you’ll need to call a plumber to fix it, unless you have special expertise and know exactly what you’re doing, Aynes says. In good shape? Continue with the DIY.
6.Replace the old flange bolts
These can rust and weaken when wet. Insert the new bolts head down in slots on the flange just where their predecessors stood. Each bolt should be positioned the same distance from the center of the drain and equidistant from the wall that’s located behind where the toilet normally sits. This will ensure the john isn’t cockeyed when you put it back on the bolts. Put on a washer then screw a nut on each.
7.Install the new wax ring
Adhere the ring either to the bottom of the toilet drain or on top of the flange.
Lift the toilet as before, aligning the holes at its base with the two flange bolts so that it sets squarely on the flange. The wax ring should be smushed between the two.
8.Sit on the toilet
With the seat and lid down, put your weight squarely on it. Rotate around until you feel the toilet completely flush with the floor. It should not move anymore at that point. Replace the plastic disc and metal washer and screw the nut on each flange bolt at the base of the toilet. Tighten so that it snuggly secures the toilet — it shouldn’t wobble. But be careful not to over tighten as that could crack the porcelain and cause leaking.
9.Flush test your work
After fixing the leaking toilet base, you need test it and confirm whether the dropping water was stopped. Reconnect the water supply pipe to the bottom of the tank. Tighten securely while being careful again not to over tighten since that could cause damage. Now turn on the toilet inlet valve to the toilet and flush a couple times to make sure there are no leaks. Then replace the trim caps.
Here is the video about how to fix a leaking toilet base.
If the upper process can’t fix your toilet, please see ” how to fix a running toilet” which includes lots of skill.