Re: plumbing
Posted by jimbo on June 21, 2004 at 12:22:04:
In response to Re: plumbing
:You have a cross connect. SOme possible causes:

Some shower valves, MIXET brand eg. are known to be able to allow cross connect even when turned off. Other single handle valves also have a possibility.

Also, if you live in a cold climate, there may be a tempering valve installed on the supply to lav and toilet; this valve may be malfunctioning.

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