"Robert Wallace" wrote in message
...
I have a small pond I keep for frogs and wildlife.
Each year it gets covered with a thick layer of duckweed that causes the
water to become dark and evil smelling.

I'm surprised at that effect, my duckweed has no effect on the water.

I asked my local fish and pond centre for some magic powder, but they said
all you can do is scoop it out.

This is plainly ridiculous as it grows faster than I can scoop!

Don't be daft, of course it doesn't. I scoop ours out every three or four
weeks, I throw it on the surronding soil and the hens love it. It soon
becomes incorporated in the soil.

I have tried emptying the pond and fitting a new liner but blow me if it
didn't come back.

A new liner wouldn't help.

Thus far Duckweed 3 Me 0
Any ideas???

Keep pulling it out.

Mary