How to Install a Toilet | Plumbing
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How to Install a Toilet

If you’re about to redecorate or remodel your bathroom, considering replacing your old toilet with a new one. There’s a wide range of colors, sizes, and styles, so the next time you update your fixtures to fit your style, the toilet doesn’t have to stick out like a sore thumb.
There are a bunch of steps to properly replace your old toilet with a new toilet, but we’ve outlined them below to help you make progress with your new project. If you’re interested in installing the toilet before you try to find a plumber, the following step-by-step guide will help you install a toilet and save some money.

Measure the distance between the wall and the floor bolts.

The standard toilet will have a measurement of 12 inches. If you have an older toilet, you may have a different measurement.

Turn the water off by turning the water supply valve clockwise.

This will prevent water from reaching the toilet during the installation, so it’s important you execute this step before moving forward. Give the toilet a flush to clear the majority of the water from the tank.

Remove the water in the tank.

You can achieve this using a sponge or rag to soak up the water. Failing to remove the water in the tank will add a considerable amount of weight to the toilet during the move, and possibly lead to spills and broken equipment.

Remove the water in the bowl.

Similarly, you want to remove the water from the actual bowl, so grab your trusty pair of rubber gloves for protection against bateria. Use a rag to soak up the water until the bowl is dry.

Remove the tank bolts.

Most toilets are made of two parts – the bowl and the tank; the tank bolts are found under the tank, as they’re used to help secure the tank to the bowl. Once these bolts are removed, you will be able to remove the tank—there’s one more step before you can do that though!

Remove the water supply line.

The water supply line is what you turned off earlier using the valve. Find where the water supply line attaches to the toilet and twist the fixture holding it in place counter-clockwise to remove it. Once removed, your toilet tank (the upper part) should be completely free to move.

Remove the floor bolt covers and bolts.

The decorative floor bolt covers are usually a plastic piece designed to fit over and hide the mounting bolts.

Gently rock the toilet bowl from left to right.

This loosens it from the wax seal underneath is broken.

Remove the toilet tank from the bowl.

Be sure to lift with your legs, as toilet tanks can get pretty heavy (another reason why you don’t want to leave water in it).

Plug the sewer line with a rag.

To avoid sewer gases from wafting into your bathroom, use a small towel to plug the opening no visible.

Scrape away the remaining wax.

The old toilet flange will probably leave a partial layer of wax around the hole in the floor; remove this with a putty knife.

Relace the existing flange or mounting bolts around the opening.

You might as well give these parts an update while you’re updating your toilet, but it’s not necessary. The mounting bolts are the bolts sticking straight up out of the ground … they hold the bowl of the toilet in place.

Fit a new wax ring around the hole in the base of the toilet.

This helps secure a strong bond between the sewer line and the opening of your toilet. Without this seal, your toilet will leak and expose you to sewer gases.

Install the toilet over the mounting bolts.

Again, lift with your legs, and place the toilet over the mounting bolts. Once the bolts are fed through the base of the toilet, rock the bowl back and forth to ensure the wax seal has a chance to seal properly.

Level the bowl and mount.

Screw the nuts over the mounting bolts by hand. Make sure the toilet is level by using insert shims if necessary and a standard level measure. Once level, tighten the nuts over the bolts using an adjustable wrench. Alternate between bolts to distribute even pressure. Do not over tighten, as you may crack your new toilet. Cover the bolts with the decorative covers supplied.

Guide the tank bolts into the holes in the bowl.

Tighten the bolts, but be careful not to over tighten. Again, you may crack the porcelain.

Reconnect the water supply.

Re-attach the hose to the toilet. This will supply the tank with water.

Install the toilet valve assemly.

This is the inner workings within the tank than enables the toilet to flush.

Lay some caulk around the base.

This will create a solid seal between the toilet and the floor. Once you’ve done this final step, give the toilet a flush to refill the tank and bowl with water.
Find a plumber in your area
This concludes the process of installing a toilet. If you’re not entirely sure if you’re capable of this, consider using our yellow pages to find a local plumber to help you.

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