A deck is a beautiful addition to your home but it can become stained over time. Due to weather conditions such as rain and snow, your deck may end up with water spots that also encourage spots of mold to grow. Cleaning water stains is easily done with home remedies and home solutions, but preparations must be done to remove built-up dirt first.
Dislodge Debris and Cean Up
Prepare the deck for cleaning by brushing it with a stiff brush to loosen debris. Push all the debris off the deck, and use a putty knife if necessary to dislodge large pieces of leaves and other materials in deck board cracks. Rinse the deck off with a garden hose to remove any leftover debris.
Washing Deck Off
Rent a pressure washer and wear goggles while spraying a powerful stream of water on the deck boards. To protect the wood from damage, keep the sprayer's head about 4 to 6 inches away from the boards. Work your way by following wood grain and keep a firm grip on the pressure washer. The powerful stream will remove most stains, including water stains and mold spots that form from water stains.
Using household cleaners
Stubborn water stains need to be treated with household cleaner and water mixture. Combine a 1 cup of household bleach with 1 gallon of water in a plastic bucket to make a homemade deck cleaning solution. Wear rubber gloves while applying cleaning solution and brushing it off with a stiff brush. For added protection, wear safety goggles if you are using a hand held brush to scrub our stubborn spots.
Hose off the entire deck with a garden hose and not with your pressure washer. The pressure washer will spray particles of bleach on other surfaces, possibly causing staining. Using a garden hose is a better practice to gently rinse off homemade cleaner and get rid of all water spot damage.