Water Volume...By the Numbers

I was playing around with some numbers earlier today and came up with the following possibly interesting facts:

All of the main waterline from the Treatment Building up to the reservoir and down to the beginning of Pineridge Rd is 6" plastic pipe. Each 100 meters of this pipe will hold about 1766 litres. That's 1.77 m3 (cubic meters). For the metrically challenged, that's about 467 US gallons or 388 Imperial gallons. I haven't actually measured the approximate length of pipe our system would have, but it could be around 1 km (1000 meters)?

When we're filling the reservoir, we're pumping about 20 US gallons per minute. That's 1200 US gallons per hour or about 4500 litres (4.5 m3) per hour. That means it takes about 20 minutes to fill each 100 meters of our 6 inch plastic mainline.