Step-by-Step Guide: How to Repair a Leaking Water Tank
Ben Robinson May 10, 2024 3:22 PM
This guide teaches how to repair leaks in plastic, concrete, steel, and fiberglass water tanks with epoxy patches, sealants, putty, and gel coats. Tips include preventing corrosion, fully exposing underground tanks for repair, and cleaning/inspecting after fixing the leak.
Water tanks play an essential role in storing and delivering the water we need for various purposes. However, leaks are common which can lead to major water loss and expensive repairs or replacement if left unaddressed. Fortunately, many tank leaks can be fixed at home using basic techniques tailored to the tank material and type of leak. This guide covers how to diagnose, locate and repair leaks in plastic, steel, concrete, and fiberglass water tanks.
A leaking water tank can be a nuisance and wastewater. You may be able to repair it yourself with these simple steps:
Find the leak. Look for cracks or holes in the tank visually or by listening to the sound of dripping water. If you can't find the leak, call a professional.
Empty the tank. This will prevent further damage and make it easier to repair the leak. To do this, open the drain valve at the bottom of the tank.
Choose the right adhesive. The type of adhesive you need will depend on the material of your tank. Concrete tanks can be repaired with hydraulic cement, while plastic tanks can be repaired with silicone adhesive.
Apply the adhesive. Apply a thick layer of adhesive to the crack or hole and work it in with a putty knife.
Let the adhesive dry. This may take several hours or even overnight.
Fill the tank. Once the adhesive is dry, you can fill the tank with water.
