After four years of research and development, 'The Answer'
was launched in June 2001 and has had a dramatic effect on fish
keeping, at both commercial and hobbyist level, throughout the
world. 'The Answer' is a mechanical, self-backwashing fine-screen
filter, which is low maintenance and gives excellent water clarity
and quality, whilst protecting the bio stage from unwanted solids.
The Filtration Process 
The 'Answer' is designed to fit to exit pipe work within the
primary settlement stage or prime mechanical filtration chambers,
whether pump or gravity fed, from the pond. The water entering
'The Answer' generally comes from the bottom of the pond and
contains dust, leaves and fish faeces, amongst other solids.
At this stage, it is important to stop all 'mechanical' solids
from entering the biological stage, the more mechanically clean
the water, the more effectively the biological stage will work
hence the development of 'The Answer'.
All water that passes through 'The Answer' is finely filtered.
The pump that provides the power and cleaning action draws filtered
water from inside of 'The Answer'; it is then pumped into a hollow
rotor arm. At each end of the arm are nozzles angled at 45 degrees.
Water is pumped through these nozzles and in doing so causes
the arm to rotate. Water is forced out at high pressure against
the inside of the screen continuously. This causes water to backwash
through the screen to the outside. The result is that particles
lodged on the outside, which are naturally trying to get through,
are forced away and eventually settle at the bottom of the container.
Once here, there is no way back and they can be sumped to waste.
Therefore, 'The Answer' will run continuously without blocking,
protecting the bio-stage and giving excellent clarity.