Most inground fiberglass and concrete pools are built structurally to withstand the weight of the dirt against them when drained. However, if the groundwater is high enough, it can push the entire pool out of the ground. The pool shell acts like a ship and floats up in the groundwater.
How long can you leave a pool empty? Well, the minimum amount of time possible in order to minimize the risk of serious damage. Most issues that require a pool drain will take at least a day or two to resolve, but it's recommended to not let it sit empty for any extended period of time.
The answer is always NO. Above ground pools need the weight of the water in them to provide an optimal level of stability. Without water supporting the wall you run the risk of the pool wall coming out of the track. Also without water in the pool the liner can shrink and no longer fit your pool.
Most pool pop ups occur when a pool is empty or only slightly filled, however there are a few instances where a pool may rise or pop up slightly, even when full of water.
The weight of ice or snow are common culprits of pool collapse. Draining your pool too much. An older inground pool may not be able to withstand the weight of dirt against it once it is empty or if the water levels are too low. Groundwater can also push against the pool walls and cause it to collapse.
Modern concrete pools can usually stand being drained for as long as needed, but there'll still be a risk of popping if the ground water level is high. Fibreglass pools are less resilient. The floor may come loose and float to the top when refilled, even after a short period.
Why Pool Liners Matter
Pool liners are critical because they form a barrier between the wall of the pool and the water inside of it. Many inground pools have tiled walls that eliminate the need for a liner.
I. If the pool ever needs to be drained to replace the water or to maintain the plaster, it should never be left empty for more than eight to ten days at the most. More than this may cause the plaster to dry out and crack. Keep your pool full for best results.
How Long Will a Concrete Pool Last? A concrete pool should last decades (we're talking 50 years or more) if it is properly maintained. While the shell of the pool can become damaged if the building was not done correctly, a well-constructed concrete swimming pool should last a lifetime.
Close the pool for winter – but don't drain it.
In winter, the water in your pool is still your friend. Especially when properly winterized, it helps to protect the pool liner, keep it clean and prevent unnecessary damage from debris, harsh weather and other factors.
Gunite pools are among the longest-lasting pools on the market. When gunite pools are properly installed they could potentially last 100+ years. They are extremely durable and totally customizable.
A well-maintained concrete pool should last around 50 years or more. And a well constructed in-ground concrete swimming pool should last a lifetime. But, a pool's liner or finish won't last long. And thus, an in-ground concrete pool will need to be resurfaced every 10 to 15 years.
While Marcite plaster is the least expensive of the gunite pool surfaces, it does have its disadvantages. The surface can start to show visible chipping or etching after 5 to 7 years. They will also start to stain, and inhibit algae due to its porous surface and is the least durable in the plaster pool family.
Rain will cause streaks, discoloration, and curing mistakes once the plastering has begun. Not only will it cause streaking, but it also causes something called hydrostatic holes in the granite and plaster.
Curing plaster refers to a maturation process of the new plaster finish when it strengthens and seals. The pool finish will start to cure immediately after mixing. Sixty percent of the curing process occurs in the first 4 weeks and will continue over the next 8 to 10 months.
The Balancing Act of Pool Maintenance
The typical lifespan of a vinyl liner is anywhere from 15-20 years and where your liner falls in that range depends, most crucially, upon your proper maintenance of the pool's chemistry.
The average vinyl inground pool costs between $25,000 and $45,000, and between fiberglass, and concrete, vinyl is the most affordable option. Although the initial price is lower, the long-term cost to maintain a vinyl liner pool is $13,250 over ten years.
But this is a slippery slope. If the ground water is still there, this will turn into a big mess. It should also be stated that liners more than 3 or 4 years old dry, shrink, and become rigid VERY QUICKLY.
Concrete Pools, Vinyl Pools and Fiberglass alike all have the ability to float if not properly built or due to extreme weather conditions or hydrological ground changes after the pool is built. picture of a vinyl pool that floated its liner. Demonstrating that all pools can float.
Filling your pool with dirt is the fastest and most affordable way to get rid of a pool because there's no need to remove your concrete or metal shell. This saves on both labor and hauling costs. However, filling a pool with dirt is still a delicate process that requires careful preparation, drainage, and demolition.
A popped or floating pool is a swimming pool that has risen out of the ground. Popped pools are not an everyday happening, but when they take place, they may result in irreversible damage to your pool.
Without question, concrete pools require the most maintenance of any type of inground pool. For example, with vinyl and fiberglass pools you don't have to worry so much about your calcium levels in the water.
Yes, it is safe to put salt in a concrete pool, there is just more to watch with concrete pools than with other pool types. If you don't have anything in between your water and your concrete, your concrete can erode faster, but it does not affect the quality of the water or your health.