I need advice on thawing water pipes; please, experts, I’m really frustrated because of an exam today
Thread Content
Below are the original question and answer: 23. How to deal with frozen cracking of valve fittings? Answer: If valves, faucets, or connectors freeze and crack, they can only be replaced with new ones. If the ice inside the pipe has not melted, replace the valve and pour hot water over the pipe to melt it, or use a blowtorch to heat it until it melts. If the ice inside the pipe has melted, the relevant control valve can be closed and replaced with a new one. The person who posed this question said it was a question from the National Water Resources Knowledge Competition in 2014. I would like to ask: which types of pipes can freeze, and can boiling water be used to deal with that? None of the pipes will work, right? It still won’t explode like that?
This post was last edited by ylb913 on 2016-3-14 at 15:10. 1. This is a water pipe; water expands when the temperature is below 4 degrees, and the expansion becomes even more severe when it freezes. Just heat it until the ice melts, and there’s no need to worry about further expansion or even bursting. 2. When heating, replace the valve or tube while it is still frozen, and then proceed with heating. If it has already melted, the frozen and damaged valve or pipe is replaced after shutting off the valves upstream and downstream.
Hello, I would like to ask why, when hot water is used, ice forms inside the pipes – won’t that cause an explosion? The question setter said these are the answers to questions from a national knowledge competition.
It heats up quickly with boiling water, and not all of the contents in the pot will necessarily melt – this is something that can be controlled and managed by a person, through repeated distillation processes.