How To Fix A Leaky Bathtub Overflow Tube

If you notice a leaky bathtub, the problem can often be traced back to the drain assembly or the overflow tube. A bathtub overflow drain acts as a safety feature to divert water down the overflow tube if the tub overfills, to prevent the water from spilling out over the top of the bathtub. This helps to prevent water damage from an overflowing tub by preventing water from spilling out and dripping over the sides and beneath the bathtub where it could damage the floor, or a ceiling if located in an upstairs room.

The first impulse when noticing a bathtub leak could be to get to the drain underneath the tub although in many cases, the overflow tube could be the source of the leak.

Locate the Source of Your Bathtub Leak

Before you start tearing things apart to get underneath your bathtub, locate the source of the leak by checking the tile around the tub for caulking or grouting issues. If this is the case, you will only notice a leak while the tub or shower are in use.

If you notice a continuous leak even when the tub or shower or not in use, it could be a waterline that is pressurized and leaking constantly rather than a leak with the overflow tube.

If there is a leak in the tub drain or piping, you can remove your access panel to view the plumbing for the bathtub. Run water while looking for leaks and any loose connections. Repair or tighten drain fittings as needed. 

If you do not see leaking when running water in the bathtub, run the shower and look for leaks coming from the faucet. If you do not notice any leaks from the shower running, the overflow tube is the most likely cause of your tub leak. 

Replacing Your Bathtub Overflow Plate

It is easy to remove a bathtub overflow plate with just a screwdriver to check the gasket. A ring-shaped gasket seals the overflow pipe and is located directly behind the flange around the opening. The rubber gasket can become cracked and brittle over time and cause leaking. Remove the overflow plate with a screwdriver and simply pull it off. You may need to cut the caulk out of the way with a utility knife. Inspect the gasket and replace it if cracked or worn.

One of the easiest bathtub overflow plates to install is the Innovator® Snap-On Bathtub Overflow Plate Kit by Watco. This innovative tub overflow plate is a simple replacement with easy retrofits to one or two hole trip lever overflow plates. If you are replacing a trip lever stopper, get the overflow plate with the matching SimpliQuick® Tub Fix for a quick and easy way to upgrade your entire tub with quality tub plumbing products.

FixMyDrain.com is the premier online retailer for all Watco tub plumbing products including replacement stoppers, tub drain parts and overflow plates. Watco is a name recognized by professional plumbers for quality products that are easy to install. Contact us with any questions and upgrade your tub today with the Innovator® Snap-On Overflow Plate Kit.