Amid a forested area along Bukit Batok Road sit two large circular tanks — standing tall above the nearest buildings — but blending in amongst the trees.The two tanks are part of the Tengah Service Reservoir, with a combined capacity equivalent to 22 Olympic-sized swimming pools.They are used to store treated drinking water from national water agency PUB's waterworks.Service reservoirs like the one in Tengah help to ensure a continuous and reliable water supply, the agency stated in a news release on Tuesday (June 16).«They serve as a buffer against daily fluctuations in water demand and help maintain supply reliability during periods of peak usage or unexpected interruptions,» PUB said. Read more