Can you drain an inground pool?
Never completely drain a fiberglass or in-ground vinyl liner pool; doing so can damage the integrity of the pool surface or liner in the form of bowing or cracking. The best practice is to partially drain these types of pools. Always complete partial drains by 1/3 of the water at a time.
Where does an inground pool drain to?
During normal operation, water flows to the filtering system through two or more main drains at the bottom of the pool and multiple skimmer drains around the top of the pool. The main drains are usually located on the lowest point in the pool, so the entire pool surface slants toward them.
What’s the best way to drain a cement pool?
The cover is usually sealed tight, and in a cement pool, it may take a chisel to remove it. Under the cover is a pipe that leads down right into the dirt or gravel beneath your pool. Opening up the valve allows water to come up from under the pool and pour into the pool, relieving the pressure.
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.
Can a concrete pool be pushed out of the ground?
In-ground, concrete pools are built structurally to withstand the weight of the water pushing outward on the shell, and that water weight helps keep the shell in the ground. However, if the groundwater is high enough, it can actually push the entire pool out of the ground.
How does a hydrostat work in a cement pool?
A hydrostat is a valve installed in the deep end of your pool. The cover is usually sealed tight, and in a cement pool, it may take a chisel to remove it. Under the cover is a pipe that leads down right into the dirt or gravel beneath your pool.
What happens when you drain a concrete swimming pool?
When the pool is drained it can cause the walls to collapse or groundwater can cause the liner to float; neither of which are good for swimming pools! In-ground, concrete pools are built structurally to withstand the weight of the water pushing outward on the shell, and that water weight helps keep the shell in the ground.
What’s the best way to drain an in ground pool?
Steps Drain the pool. Do this when the soil is dry so it will be unlikely for the pool to float out of the ground. Use a jackhammer, sledgehammer, or other tool to smash holes into the bottom of the pool. This will allow water to drain out of it in the future.
What happens when you drain an inground pool?
Otherwise, you could run into a serious problem. While it is rare, pools have been known to actually float out of the ground after they are drained when groundwater is present. Also, you will want to make sure that your pool is strong enough to support the outside pressure without water. If your pool is fiberglass, you need to be careful.
How long does it take to pour concrete in a pool?
Allow 3-5 days for a contractor to pour concrete in your pool. The contractors will likely remove the upper portions of your pool carefully and then bring a cement-mixing truck out to your home before filling and smoothing the surface out. The contractor may require more time if they need to re-pour any sections.
