How to Install a Toilet

Instructions for putting in a new toilet

Don't be daunted by the prospect of installing a new toilet -- you don't require any specialized knowledge of bathroom plumbing to do this job successfully. Because toilet plumbing is standardized, it's very unlikely that you will have to add any new infrastructure unless the toilet you're removing is very old. If that's the case, you may want to consult a professional plumber before proceeding, since mistakes are easy to make and costly to correct if you don't have any plumbing expertise.

Install a New Toilet

If you're going to use your existing bathroom plumbing with your new toilet, here are the installation instructions:

  1. Check to see if your drain is blocked by a stopper which prevents sewer fumes from seeping into your home. If so, remove it.
  2. Use closet bolts to secure your new toilet flange, if your new toilet has a flange.
  3. Place the new wax ring over top of your open toilet drain. This ring should form a watertight barrier; if there are no leaks in your existing ring, you may be able to skip this step.
  4. Put your new toilet outlet connector over top of the toilet flange's bolt housings. Secure each bolt with a washer and a nut, then screw the bolts into place.
  5. Place the new toilet basin over the over its outlet connector, and bolt it into place. Use caution here, as over-tightening the bolts can crack the basin.
  6. Add the toilet seat, and secure it into place. Hook up any new toilet hardware which is part of the installation (flush handles, etc.) and reconnect the water supply. Flush the toilet to make sure it's working properly.

One word of caution to keep in mind when you're installing a toilet: their basins tend to be very heavy, weighing anywhere from about 80 pounds to 150 pounds. Even if you think you can manage that weight on your own, consider seeking help when placing the toilet basin. Otherwise, you risk dropping it and cracking the basin, or injuring yourself by overstraining your muscles. Always prioritize safety when dealing with any type of bathroom plumbing.