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It feels like repairing such a system would be significantly more difficult - if you get a crack or a leak, your whole system is suddenly flooded, and if you ne
by pavel_lishin 3y ago
It feels like repairing such a system would be significantly more difficult - if you get a crack or a leak, your whole system is suddenly flooded, and if you need to repair just one section, you have to find a way to keep the rest dry.
- throw310822 3y agoRepairing it seems easier than if it is underground, but certainly it has a failure mode (leak/ flood) that a normal underground pipe doesn't have. However we're talking about fairly shallow canals (a few metres). I wonder what is the failure rate for reasonably priced semi-flexible prefabricated pipes with a diameter of maybe a metre, or even less.
- treis 3y agoProbably can keep it pressurized enough to keep water out if there's a crack.
- throw310822 3y agoSeems like keeping them pressurised would add yet more costs. I would rather let the sections fail (assuming it's rare) and have automatic valves sealing the failed section from the rest (something very simple, like an inflating balloon that fills the entire diameter of the pipe).