"Don Foreman" wrote in message
...

I shoulda done this years ago. I can now flush the toilet and have a
shower before the toilet refills, and I can have a shower when there's
a load of laundry running downstairs. Used to be, if I flushed the
toilet the shower would slow to a meager trickle. Now there is no
noticable difference, which is how it oughtta be.

I use a bladder tank for that, with a check valve at the supply fitting.

--