在世界上严重缺水的地区，配水管每周只能供应几个小时的水，住户必须将水储存在屋顶的水箱或房屋下方的水库中。当这些断续供应的水储存几天后，水质可能会迅速恶化，给消费者带来健康风险。在约旦安曼进行的一项研究考察了不同类型家用储罐中微生物再生的程度和特征，以及影响这种再生的参数。研究结果表明，异养细菌数量比log1显著增加。 在水储存四天和七天后，记录为5.2和5.7 cfu/mL。微生物再生主要由放线菌、假单胞菌和莫拉菌属控制。家用水箱的不同材料（聚乙烯、玻璃纤维和铸铁）对储存水的细菌总数没有显著影响。温度是影响家用储罐中微生物再生的最主要因素。需要对这一主题进行更多的研究，特别是确定减少再生规模的最有效方法。为了减少与饮用储水（尤其是在炎热气候下）相关的公共健康危害，作者提出了各种策略，包括- 设备的使用、家用罐中的二次氯化以及每年的罐清洗。包括21个参考文献、表格和图表。

In parts of the world with severe water shortages, distribution mains may only supply water for a few hours each week, and householders must store the water in tanks on the rooftop or in a reservoir beneath the house. When these intermittent supplies are stored over a period of several days, water quality may rapidly deteriorate, creating a health risk to the consumer. A study conducted in Amman, Jordan, examined the extent and characteristics of microbial regrowth in different types of household storage tanks as well as the parameters influencing this regrowth. Study results showed that heterotrophic bacterial counts increased significantly from log 1.7 to log 5.2 and log 5.7 cfu/mL after water was stored for four and seven days. Microbial regrowth was dominated by Actinomycetes, Pseudomonas species, and Moraxella spp. The different materials of the household tanks (polyethylene, fiberglass, and cast iron) did not significantly influence the total bacterial count of the stored water. Temperature was the factor that most influenced microbial regrowth in household tanks. More research on this topic is needed, particularly to identify the most effective means of reducing the scale of regrowth. To reduce the public health hazard associated with drinking stored water (especially in hot climates), the authors propose various strategies including point-of-use devices, secondary chlorination in household tanks, and annual tank cleaning. Includes 21 references, tables, figures.