every tool is a hammer
This was today's job. A clogged roof drain. It froze and clogged. It was letting rain water into the tripper room. It's a loooong room with coal conveyors running thru it. If the coal gets wet and sits, it starts heating up and can spontaneously combust. It was a 6" female hub, with a 6x5 soil X NPT bushing into a 5" galvanised line. I replaced it with a 4" no-hub drain. I had a short piece of no-hub from the drain into a 4" c.i. by clay tile fernco. The 4" clay tile o.d. is the same as 5" galvanised o.d.
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