We have a small (2.4 m dia. by 0.5 m deep) pond in our back garden and it is
full of weed and lillies so there's one or two fish the heron missed.
Although the pond
was first made some years ago and had been earth filled, 4 years years ago I
dug out all the earth and lined the concrete (cracked) with a pond liner.
Tufa to below the water level and over the concrete sides holds the pond
liner in place.

We are hoping to clean up the pond so I am seeking advice and
recommendations for a vacuum cleaner/filter to clear the muck from the
bottom.

Regards

Geoff