![]() Depending on the size and age of the rust stain, the dry acid will eat away at the stain in 5-15 minutes. Use your pool pole to position the sock over the stain, holding it in place if the stain is on a vertical wall. Add about a cup of dry acid to the sock, and then tie the sock in a knot to keep the acid contained. You can also use ascorbic acid (vitamin C). Wearing proper protective gear, fill up an old tube sock with a granular acid like sodium bisulfate ( dry acid) – just your regular pH decreaser. 6 Methods for Removing Rust Stains in a Pool Method #1 – The Sock Method First figure out what is causing the rust stain (or any pool stain), to avoid having to retreat the same stain over and over again. Vinyl pools with rusty steel coping, or rusty walls have a larger problem to deal with.įinding the source of the rust, the steel or ferrous material (Iron) is important before removing the stain. Chlorine products will cause corrosion of steel when placed near to one another. A reappearing rust spot on a plaster pool can be a rebar tie wire that is too close to the surface. Old water pipes can carry iron into the pool when adding water. Rust stains can develop from construction fasteners that fall into the pool, but more often come from hair pins, aka bobby pins, or pieces of non-pool toys brought into the water. Rebar contacting pool water, or rebar tie wires.Like vinyl liners, fiberglass pools have a slick and smooth surface that deters some kinds of stains, but they are definitely not stain proof! The gel coat finish covers the fiberglass shell, and as the pool ages, surface scratches or crazing (small cracks) make stains more likely to appear. As a liner ages, it loses more of its resistance to UV rays and chemical degradation, with fading and staining a more common occurrence. However organics, metals and minerals can stain and deposit on vinyl liners or the plastic in-pool steps. The composition of vinyl makes it less likely to stain in most cases. Plaster is meant to degrade over time and be acid washed occasionally in order to remove a thin layer of plaster, exposing fresh and unstained plaster beneath. Plaster pools stain more easily than vinyl the layer of plaster is porous to many stains, and rough or etched surfaces accentuate a stain around the edges. ![]() Read on as we show you how to effectively remove rust stains from your pool, ensuring it remains a clean, inviting oasis for your enjoyment. Fortunately, there are several methods at your disposal to eliminate these stains and restore the pristine beauty of your pool. Rust stains not only mar the pool’s appearance, but can also be indicative of potential corrosion concerns. Pool owners faced with the frustrating and unsightly problem of rust stains in their swimming pool know all too well the need for effective removal solutions.
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