What is a hydrostatic valve?
The hydrostatic valve is a device to relieve the pressure installed on the bottom of the pool, which prevents the pressure of groundwater under the pool that damages the insert or even lifts it from the ground. The hydrostatic valve achieves this by allowing ground water to flow into the pool, releasing the pressure on the insert. This process usually occurs only when the pool is empty and does not have the necessary weight to be against the effects of groundwater pressure. The hydrostatic valve or the hydrostatic relief valve (HRV) relies on a one -way valve that keeps the water in the pool but opens into the pool. These devices are often included as an integral part of the main drains and exclude the need for a double fitting on the pool floor.
Groundwater setting can develop a surprising amount of hydraulic pressure on structures such as pools. It is not uncommon for the pool liner to push several feet from the ground or even broken by groundwater pressure. One of the best ways to be tIt is an expensive disaster to avoid, the installation of the hydrostatic valve at the bottom of the pool, which opens when the groundwater pressure exceeds the set point and allows it to flow into the pool. Some dirty water in the pool or slight overflow is the only result of excess pressure.
PLOK High -pressure groundwater into the pool usually occurs when the pool has a large amount of water drained or is completely empty. A sudden increase in groundwater levels, such as levels that occur after heavy rains, cause HRV to open and allow the pressure of groundwater. If this happens, the valve should be immediately checked for an obstacle, because gravel and small stones are usually transmitted when opening. Foreign objects are the collection cause of the HRV is not able to properly close the resulting loss of pool water.
Hydrostatic valve can be purchased as separate assembly or as SOStress the integrated main outflow units. These compact units allow installed pool floor installed. This type of combined assembly usually consists of a standard body with a relief valve and a valve in the center. The ring of the main dress and the grate then provide a cover for both units. The hydrostatic parts of the valve are degraded with time and cause leakage; As a result, valve checks should be a standard part of any pool maintenance mode with standard replacements performed at approximately five -year intervals.