Waterproofing Tips for Gunite Pools in Overland Park
Gunite pools are quite popular in Overland Park. A mixture of cement, aggregate, and water sprayed over the surface under pneumatic pressure is used, along with a rebar frame. Because gunite is porous, plaster is sprayed between this material and the pool’s water to create a water barrier.
If the applied plaster is not thick enough, water seepage through the gunite is possible. When that happens, water is wasted. Isolating the loss is nearly impossible unless the pool is completely drained. Fortunately, there are viable options for dealing with gunite pools in Overland Park that leak.
Gunite pools develop cracks for different reasons. As an example, when water from behind the structure permeates any porous voids, the temperature changes. This causes expansion and contraction that put this type of pool at risk for cracking. However, cracks can also develop if the surrounding ground shifts. Typically, shifting occurs due to freeze/thaw cycles and changes in the water table.
Based on the problem, a licensed contractor will use the appropriate repair method. For a very small leak, pouring a waterproof sealant into the pool usually works well. If the plaster was incorrectly applied or when water seeps through the porous gunite material, the contractor will identify the problem area, followed by applying an additional layer of plaster. If the grout line or the plaster itself is deteriorating, re-plastering may be required.
When the plaster in gunite pools in Overland Park cracks, the preferred solution is pressurized polymer. Because this material adheres to the pool’s structure, it bonds the pieces together. After the polymer is applied, a plaster coating is sprayed on, making the repair job unnoticeable. For large cracks, the structure must first be stabilized. Then, the gunite structure is locked together and a polymer crack injection is used to seal the leak. Finally, the repaired crack and polymer injection are re-plastered.