SvennoJ said:
I finally got all 50 ft of 1/2" steel drain snake in, twisting, pulling, pushing. And it slowly started going. It is/was at least 40 ft from the access under the sink. While moving it up and down you can hear it in the ceiling the floor below :/ |
If the clog is solid enough, water or air pressure very rarely works, even with boiling water. Now if the clog allows water to drain slowly, especially if you've punched some holes in it, then some really hot, if not boiling water, with water pressure from a hose, will usually be enough to unclog the majority of it. Best if the hose water is really hot as well like from a sink tap if it has a garden hose adapter. The heat will cause the pipes to expand a bit and the water pressure will cause swirling around the clog gaps/holes and will loosen it up even more and cause it to come apart. It's best to block any other pipe openings on that run of pipe so the pressure isn't relieved elsewhere (like at another sink) while trying to clear the clog.
My present place is only a decade old and the plumbing job that was done is sad. I've done a bunch of work to it this year. Luckily the basement isn't finished so it was easy to get to. They couldn't even get the level of fall correct. Most runs had way to much fall where they began and had negative fall before they reached the collector run. They only had about a third of the hangers they should've, so the pipes all have bows in them all the way down the runs. Once I cleared my kitchen run that's when I checked and realized how poor the fall was. Adding more hangers and correcting the fall as much as possible looks to have solved the kitchen run problem, as well as another much worse potential problem I believe I would've eventually had from one of my toilets due to negative fall and lack of support. Sometimes you just gotta do it yourself if you want it done right.
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