Can draining a pool cause it to crack?
Vinyl pools tend to contract when emptied, which can result in damage when they are refilled. Gunite or fiberglass pools can crack, and fiberglass pools may suffer bulging or splitting if drained.
How do you fix a popped up pool?
Answer: You have several choices. The best solution is to remove both the deck around the pool and the screen enclosure (if the pool is screened). Then disconnect all electrical and plumbing attachments, drain and lift the existing pool, dig, re-level and reinstall the pool to the proper grade.
What happens to the ground when you drain a swimming pool?
In-ground concrete – while most of these pools are built structurally to withstand the weight of the soil that’s around them when drained, high ground water levels can push the entire structure out of the ground
When is it safe to drain a swimming pool?
Basically, if you want to know when to drain a swimming pool, the answer is when you have no other alternative. Draining a pool is risky business for several reasons. Your pool is not meant to be empty.
What happens if you leave a swimming pool empty for a long time?
Modern concrete swimming pools might withstand being drained for a while (as long as needed); however, there is still a big risk of popping out of the surface if the surface water is high. Fiberglass pools are even worse. Their floor might become loose and begin to float to the top when you refill them, even after a few hours.
Why is there so much pressure around my pool?
The other danger from hydrostatic pressure is the weight of water around your pool. If the water table is higher than the floor of the deep end of your pool, water in the ground around your pool will put pressure on its walls. The amount of pressure depends on how the pool was built.
Is it better to drain your pool for the winter?
You are better off to winterize the pool, but leave water in the pool to protect it. Yes, there is concern for the water line freezing and causing damage…but this is the nature of the beast in cold climate areas.
What happens when you drain a swimming pool?
You are draining the pool much faster than water can flow through the hydrostatic valve, which is designed to equalize the water level in the pool to the groundwater to compensate for a small leak or water loss.
Can a temporary pool be used for the winter?
Temporary pools are not meant to withstand freezing off season temperatures. These entry level swimming pools are the only type of pool which you can drain and pack away for the winter.
What happens to groundwater when you drain a pool?
That water is heavy and presses on your pool. When your pool is full of water, the pressure of the pool water balances the groundwater. But once the pool is drained, there is nothing pushing back against the pressure from the groundwater. If you do need to drain your pool, you will need to remove the groundwater around it.
