I spent 32 years doing water & waste water planning for small communities, so have a bunch of stories about water system freezing screw-ups. Probably the one that shows how important it is that prior planning is necessary follows.
In most of our part of the world, water & sewer lines need at least 6' of coverage to the top of the pipe to prevent freezing. One city put in many blocks of new water & sewer lines in existing gravel streets without much engineering assistance. (After all, it was just replacing old stuff with new, no problem our staff can do it without a contractor or engineer.)
Several years later the council decided to do a drainage study & pave & gutter all streets for surface drainage. First winter after the job was done, they ended up with several streets that had frozen water lines where freezing had never been a problem before. To make surface drainage system work, some street surfaces had to be lowered by a couple of feet. Subsequently, not enough cover was left on them to prevent freezing. Big expensive mess to solve a problem that could have been prevented with just a little foresite!
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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