A concrete pond is an attractive garden feature, and provides a good talking point when you have guests. However, if the tank has not been properly sealed, there is a risk it could leak, causing costly damage. The easiest way to avoid or repair a leaking concrete tank is to apply a few layers of concrete sealant to the interior of your pond. This is a relatively straightforward process, carried out using products and tools available at many hardware stores.
- Skill level:
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Things you need
- White wine vinegar
- Concrete sealant
- Rubber gloves
- Face mask
- Vacuum cleaner
Drain the pond of all water, and leave it to dry for 12 hours.
Remove any dirt and debris using a vacuum cleaner.
Mix 10 gallons of water with 1 quart of white wine vinegar, and use this to clean the sides and bottom of the pool using a mop.
Use a hose to rinse the concrete, and leave it to dry for another 12 hours.
Use a paintbrush to evenly spread a thin layer of sealant over the concrete. Be sure to wear gloves and a face mask when doing so, as sealant fumes can be dangerous and the chemical is an irritant when it comes into contact with skin.
Wait until the layer of sealant has dried, and then apply another coat. Repeat this step once more until you have three coats of sealant on the concrete.
Refill the pond, and return any plants or fish to it.
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