On 2015-07-06, Peter Parry wrote:

On Mon, 6 Jul 2015 13:44:15 +0100, "Phil L"
wrote:

They mean using a saniflo.

Putting a Saniflo in a wooden shed has the great advantage that it is
much easier to set fire to the shed when the Saniflo blocks (which it
will) than is the case with a brick structure.

It's a wonder they can sell the things with all the commentary they
attract.