Can I Use an Aluminum Ladder in the Swimming Pool?

Aluminum Differences

• Aluminum typically has other metals -- such as iron, copper, magnesium or chromium -- added to vary the strength and durability of the metal. These metal "alloys," or mixed metals, can allow for rust and degradation when the ladder sits in water for any length of time. A marine grade aluminum, however, is made for continual water contact. With only a trace of magnesium -- about 5 percent -- it is considered "pure aluminum" and will not deform, corrode or rust. This makes it a better choice of metal for a swimming pool ladder.

Easy Protection

• Keeping the water chemistry at the proper levels aids in prohibiting corrosion of other metals in the swimming pool. Periodically remove the ladder and rinse it with clear tap water, removing the chemical contact, and allow it to air dry before replacing it. For above-ground pools, it may be possible to remove the ladder between uses, which can also save wear and tear on the aluminum.

Complex Protection

• Aluminum ladders can be stripped and recoated for additional protection if you do not wish to replace them every few years. The process is rather complicated, and involves the following steps: 1) Remove the ladder from the pool and rinse, allowing to dry. 2) Clean the ladder thoroughly with an alkaline degreasing product, which can be purchased at boat supply stores. 3) Rinse the degreasing product from the ladder and allow to air dry. 4) Remove the oxidation by hand with a buffing cream designed for oxidized aluminum, also available at boat supply stores. 5) Rinse the ladder again thoroughly, and allow it to air dry. 6) Apply a self-etching product made for aluminum, following the manufacturer's directions; these are available where auto supply or finishing products are sold. This step allows the coating to stick to the ladder once it is applied. 7) Apply the top coat sealer, following the manufacturer's directions.

Other Options

• Because of the issues associated with using aluminum components in a swimming pool, manufacturers have produced ladders made of other materials. Plastic or resin -- a heavy-duty plastic -- is often recommended for above-ground pools that are taken down in the fall. Fiberglass, vinyl and stainless steel options also resist rust and corrosion from pool chemicals. Additionally, concrete ladders are available for in-ground pools. These options are available in addition to a range of aluminum ladders.