[Shop-talk] plumping question

[Jim Franklin]

On Oct 28, 2007, at 9:42 AM, John T. Blair wrote:

> Gang,
>
> I had an interesting thing happen to my plumbing yesterday that I  
> can't
> explain.

Every single time this has happaned to me, it's been tree roots in  
the main sewer line. About 20% of the time, the shower or other low  
lying drain will back up when we flushed the toilet, but rarely gave  
me trouble on its own.

No explanation for why only the toilets.

jim