FAQs

Water heater pan requirements vary by location, but most building codes require pans for water heaters installed in attics, upper floors, or above finished living spaces. Even when not required by code, water heater pans are highly recommended to protect against water damage from leaks, condensation, or tank failures.

Most building codes require the water heater pan measure at least 2 inches larger than the diameter of the water heater. Be sure the T&P (temperature & pressure) relief valve is within the diameter of the pan.

Water heater pans can be plumbed to a drain using the provided connector. Your local building code may specify the type of fitting. Oatey water heater pans include either a PVC (Polyvinyl chloride) or CPVC (chlorinated polyvinyl chloride) adapter. PVC drain adapters fit over 1-inch and inside of 1-1/2-inch PVC pipe. CPVC adapters fit 1-inch CPVC pipe.

Aluminum water heater pans without pre-punched holes give the installer maximum flexibility to determine the exact hole size and best location on the side or the bottom to fit the available drain pipe. In some cases, a pan is intended only to contain a small amount of water or to have an alarm installed, rather than to be hooked up to a continuous drain line.

You may need to replace a toilet wax ring if you notice water leaking or pooling around the base of the toilet, persistent sewer or sewage odors, or visible floor damage near the toilet. Other signs include a toilet that rocks or feels loose, or water stains on the ceiling below the bathroom. These symptoms often indicate a failed wax seal, which can lead to leaks, subfloor damage, and potential mold if not addressed promptly.

Wax rings with polyethylene funnels (also called horns or sleeves) provide directional flow into the drain and can offer added protection against leaks. They're particularly useful when the toilet flange is recessed below the floor level. Standard wax rings without funnels work well for most installations where the flange is at or above floor level. Wax rings with a funnel also help with proper alignment over the closet flange, giving the installer peace of mind that the install is correct.

Oatey, Hercules and Harvey wax rings all deliver a reliable, watertight seal and meet Oatey’s quality standards. The difference comes down to features, configuration and brand preference, with options like reinforced rings, horn styles and varying wax thicknesses to match different installation needs.

When properly installed, Oatey wax ring gaskets can last for decades without needing replacement. The wax material does not degrade over time and maintains its sealing properties indefinitely under normal use conditions. Replacement is typically only needed when removing and reinstalling a toilet.

Air Admittance Valves (AAVs) are plumbing devices that allow air to enter a drainage system when negative pressure occurs, helping maintain proper system pressure while preventing sewer gases from entering the building.

Yes, Oatey Sure-Vent Air Admittance Valves comply with ASSE Standards 1050 and 1051 and are IAPMO listed, making them acceptable under many plumbing codes when installed in accordance with local regulations and manufacturer instructions.

AAVs simplify installation, reduce roof penetrations, and are ideal for remodels or locations where venting through the roof is not feasible.

Selecting the right supply box depends on the fixture or appliance, available installation space, access requirements, and applicable plumbing codes.