Bathtub Drain Installation

Installing a bathtub drain is an essential part of bathroom renovation. Here is a guide, that will show you how to install one, on your own.
HomeQuicks Staff
Last Updated: Jul 18, 2018
Bathtub drains tend to get clogged and broken at times, due to overuse. At such times, either you can go for repair or make a replacement. In case, you are installing a new bathtub or you are going for a refinishing, then a drain installation will be on the cards. Without its installation, you cannot use your bathtub anyway.
The process of installation is simple and you get a complete installation kit in any hardware store. All you have to do is invest some time and follow simple instructions to get the job done.
Tools and Materials Required
Plumbing tasks are easily done, if you have the right tools. The right equipment makes your job substantially easy. Here is a list of all that you'll need for your bathtub. The tools and materials required are:
  • A Pop-up Drain Assembly
  • A P-Trap Pipe
  • Swivel Connector with Rubber Washers
  • Plumber's Putty
  • Glue
All these things are available in most hardware stores. The cost of a pop-up drain assembly ranges from USD 29 to USD 35. Make sure that every part of the assembly is included or your installation might hit a dead end because of the unavailability of parts.
Installation Instructions
Let us see the details of the installation procedure.
Step 1 - Fix the Bathtub First
Marble Bathtub With Cabinets And Mirror
The installation is easier, if you already have your tub in place. So, make sure that you have your tub installed, before you begin.
Step 2 - Fix the Drain in the Tub Hole
From the installation kit, take the main drain assembly and remove the nuts and washers. Take a bit of plumber's putty and apply it under the rim of the drain. This makes it stick in the tub hole. After uniformly applying the putty under the rim, place it carefully into the hole of the tub. Ensure that it sticks, hold it very firmly in place, for some time.
Step 3 - Fix Nuts and Washers
Modern Bathroom With Sunken Bathtub
Here, fix the washer and nut below the drain. This job will have to be done below the tub, as the holes are usually at the tub's bottom. Ask someone to hold the drain from above and fix the washer from below.
Then, screw the nut in place from below, with the help of a wrench. While you are turning the wrench, ask somebody to hold the drain tightly from above. Avoid tightening the nut excessively, as it may lead to leakage or slipping of the nut over the threads. Next, you can remove the extra putty left around the drain, after the fixing is finished.
Step 4 - Connect the P-Trap
Now, that the pop-up drain head is in place, you need to make arrangements for conveying the water out of the tub. Connect the drain pipe, with the P-trap on one side and connect its other end to the tub drain, with the help of the swivel connector.
Check that the whole assembly has no loose connections. With glue and cement, reinforce all the connections and check for leakages. With this, your job is done.
Installing it personally, not only saves a lot of labor cost, it also gives you the satisfaction of fixing things on your own.