On Thu, 1 Apr 2010 11:58:35 +0100, shazzbat wrote:

Ah, well, that makes it a no-brainer. Raise B to the same level as A,

Yeah if that is practical.

Connect the bottom of B to the bottom of A,

And have to drain both when the connection pipe gets blocked. It will
at some point and taps are likely to cause a block as well due the
constriction.

--
Cheers
Dave.