Tim Streater wrote:

In article ,
(Steve Firth) wrote:

MM wrote:

And there's no point having a lockable cap, because they just punch a
hole in the tank.

That would be amusingly difficult on a modern bunded tank.

Can't they just cut a hole in the outer and then screw a tap into the
inner (I don't know enough about the tanks yet to know whether this is
rubbish or not).

Local NFU man suggested says they heat up a scaffold pole and poke it
through both layers of a plastic tank, leaving the excess to drain to
ground.

AJH