My pond is completely artifical, a hole in the ground covered with a layer of pool liner. I have a submergibl pump to get the water out. Then I use a small shovel to transfer the mud into a bucket and throw it away. Not the most elegant method, but it gets the job done for almost ten years now.
The outside tab has a special construction that keeps water from freezing.
Tell your mother that your pond is too small to maintain a healthy ecosystem that would be able to recycle the influx of nutrients provided by the ducks. You can see this sometimes in public parks where way too many ducks populate the ponds. The water quality declines to a point were health hazards arise for the ducks.
I guess a few thistles would not be too bad, but it's good to eliminate as many as possible.
The outside tab has a special construction that keeps water from freezing.
Tell your mother that your pond is too small to maintain a healthy ecosystem that would be able to recycle the influx of nutrients provided by the ducks. You can see this sometimes in public parks where way too many ducks populate the ponds. The water quality declines to a point were health hazards arise for the ducks.
I guess a few thistles would not be too bad, but it's good to eliminate as many as possible.