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How to Remove Water Stains from a Deck

Published in Deck Maintenance 3 mins read

Removing water stains from a deck often involves using common household products or targeted cleaning methods depending on the stain's severity.

Water stains on a deck, often called water rings or spots, can detract from its appearance. The good news is that many water stains, especially lighter ones, can be tackled with items you likely already have around the house.

Household Remedies for Deck Water Stains

According to sources, you can remove water stains from wood using everyday household products. These methods are particularly useful for lighter or more recent stains.

Here are some effective household options:

  • Distilled White Vinegar: A solution of vinegar and water is a popular go-to for many wood stains. The acidity of vinegar can help lift the stain from the wood grain. Mix equal parts distilled white vinegar and water.
  • Toothpaste: White, non-gel toothpaste can be surprisingly effective on water stains, especially on finished wood surfaces. It acts as a mild abrasive to gently rub away the stain.
  • Mayonnaise: Mayonnaise contains oil and mild acids that can sometimes help draw out water stains from wood over time. Apply a dollop to the stain and let it sit for several hours or even overnight.

For light stains, which tend to be newer, surface treatments can often do the trick. The reference notes that light stains can be removed using surface treatments like polish. A wood polish designed for outdoor use or a general wood cleaner may help lift the stain while also conditioning the wood.

Applying Household Stain Removers

Before applying any remedy to a prominent area, always test it on an inconspicuous spot of the deck to ensure it doesn't damage or discolor the wood.

Here's a general approach when using the household items mentioned:

  1. Clean the area: Wipe down the stained area to remove any surface dirt or debris.
  2. Apply the remedy:
    • For vinegar, gently wipe the stain with the vinegar/water solution using a soft cloth or sponge.
    • For toothpaste, rub a small amount onto the stain with a soft cloth, moving with the wood grain.
    • For mayonnaise, apply a layer over the stain and cover it (e.g., with plastic wrap) to prevent it from drying out.
  3. Allow time to work: Let the remedy sit for a few minutes (for vinegar/toothpaste) to several hours (for mayonnaise).
  4. Wipe clean: Remove the residue with a clean, damp cloth.
  5. Dry: Thoroughly dry the area with a separate clean cloth.
  6. Repeat if necessary: Stubborn stains may require multiple applications.

If household methods aren't effective, or for older, deeper stains, you might need to consider more intensive methods like sanding and refinishing the affected area or using commercial wood stain removers specifically designed for decks. However, for many common water stains, these simple, everyday products can provide a quick and effective solution.

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