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Install Overflow Assembly — Tub Installation: Securing the New Tub and Drain

Intermediate12 hours

Part of project

Install a Tub & Shower Combo: Faucet Replacement Guide · Step 2 of 4

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In this video

After a dry fit has confirmed measurements, remove the overflow assembly from the tub wall. Apply a continuous bead of silicone sealant to the groove on the back of the overflow gasket. Reposition the overflow assembly behind the tub's overflow hole. From inside the tub, insert the black plastic alignment tool through the overflow hole and into the overflow assembly. Place the metal flange ring over the alignment tool and secure the entire assembly by tightening the two provided Phillips head screws.

Goal: Secure and seal the overflow drain component to the bathtub.

  • Using the provided alignment tool ensures the overflow is correctly positioned before tightening the screws.

Used in this video

  • Phillips Head Screwdriver (Tool Type: Screwdriver, Screwdriver_Type: Phillips) — Tightening the flange screws to secure the overflow assembly.
  • Overflow Alignment Tool (brand: Kohler, Material: Plastic) — To correctly align the overflow assembly with the hole in the tub during installation.
  • Overflow Flange Ring (brand: Kohler, Material: Metal) — To secure the overflow assembly from inside the tub.
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FAQs

How accurate is the 12-hour estimated time, and what factors could significantly extend this project for a DIYer?

The 12-hour estimate is for an intermediate DIYer in ideal conditions. Unexpected issues like significant wall damage, corroded old plumbing, or difficult-to-remove fixtures can easily double the project time. Always allocate extra time for unforeseen challenges, especially during demolition.

What is the absolute first safety step, and what should I do if I can't turn off the main water supply?

Always turn off your home's main water supply before starting any demolition or disconnection. If you cannot locate or operate your main shut-off valve, contact a professional plumber immediately. Proceeding without cutting the water can cause severe flooding and significant property damage.

Beyond the basic hand tools, what specialized tools or materials are crucial for ensuring a leak-free faucet installation with PEX or CPVC?

For PEX, a dedicated PEX crimp tool and appropriate crimp rings are essential for secure connections. If using CPVC, you'll need CPVC primer and solvent cement. Always use plumber's tape or thread sealant on all threaded connections and plumber's putty for the tub drain assembly to prevent leaks.

What is the most common mistake DIYers make that leads to leaks after installation, and how can I avoid it?

The most common mistake is failing to properly seal connections or not adequately tightening fittings. Ensure all PEX/CPVC connections are correctly crimped or glued, and all threaded connections are wrapped with Teflon tape and firmly tightened. During the leak test, turn water on slowly and meticulously inspect every joint for drips.

Transcript
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remove the overflow and drain el from the bath. Apply silicone sealant to the overflow gasket. Next, reattach the overflow to the bath using the flange and alignment tool provided. Then insert the flange screws and tighten with a Phillips screwdriver.

Auto-generated transcript. May contain errors.