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在中小城镇的多层住宅中,为解决城市供水水压不足、加压或为防备停水,往往在每单元的屋顶设水箱或水池。有的设在楼梯顶,有的设在厨、厕间顶部,水池池壁或池底直接与屋面或墙面相连。这种做法的缺点是,如果出现渗漏,将直接危害住房,影响使用。还有的顶层住房在使用以液化气作燃料的热水器时,水池建在屋面板上,会因水压不足而影响顶层住户热水器的使用。
In multi-storey houses in small and medium-sized towns, water tanks or pools are often installed on the roof of each unit to solve the problem of insufficient water pressure, pressure, or prevention of water supply in the city. Some are located on the top of the stairs, and some are located on the top of the kitchen and toilet room. Pool pool walls or pool bottoms are directly connected to the roof or wall. The disadvantage of this approach is that if leakage occurs, it will directly harm the housing and affect its use. There are also top-floor housings that use liquefied gas-fired water heaters. When pools are built on roofs, there will be insufficient water pressure to affect the use of top-level residential water heaters.