A friend just told me his swimming pool expanded and cracked this winter and he needs to fix it. Can you explain this and how I can avoid it?
The best way to illustrate how the power of water expansion is to show you the photo below. The rock that once sat directly on the ground has been lifted more than two inches by these frozen crystals.
Now, think about your pool and what could happen when freezing happens. When the proper drainage is not installed, the water that pools there can freeze and lift the entire pool deck. The result of this expansion and contraction is, obviously, severe stress on the concrete structure, which can lead to cracking. This is probably what your friend was dealing with.
A simple hairline crack may not mean a leak and can usually be easily repaired. If a crack is more serious and is a structural concern, it must be stabilized to prevent it from getting bigger and causing leaks. Depending on the severity, we can pressure grout beneath the pool to stabilize and fill voids. We reinforce cracks and repair the shotcrete shell before installing a new bond coat and surface.
If you notice any kind of a crack in your pool, call and schedule a free consultation to determine the best way to handle it.
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