"MartinC" wrote in message
...

Hi,
I want to buy a pond filter but before I go shopping I like to
knowledge myself of what is required before a salesman may sell me down
the river with lots of unecessary expense etc.

If you spend some time in here, you'll find that you probably can make your
own filter for a fraction of the cost of a commercial filter. Important
things to know are the pond size, number fish, and type of fish.

-S