I have owned a few different pond vacuums in my time, and have used most types on friends ponds etc. The Hozelock Pond vacuum is an average vacuum, but I would only suggest it for small to medium sized ponds.
The unit itself, is a very tidy, compact, and easy to use vacuum. the way in which this vacuum operates, is a little different to most vacuums. Where most pond vacuums would use suction, to suck the water out of the pond, like a conventional hoover, the Hozelock pond vacuum, although still using suction, is actually sited submersibly. The motor/pump itself is actually in the pond, and sucks, the debris, and silt, from very close range, and then literally pumps the dirty water out of the pond through a discharge hose. As the debris/leaves/silt enter the unit, they are chopped up inside the pump, and then pumped to waste.
the head of the vacuum has relatively small inlet holes, so no real danger that you are going to suck up fish, and chop them up.
Due to the motor actually being in the pond, the vac uses very little power incomparison to other vacs. most pond vacuums use 1200-1600watts, where as the Hozelock vac only uses 80watts.
The lenght of the vac is 2.3m, so i could easily hoover the whole of my pond by simply walking around it, no waders for me!
The vacuum cost £99.00, which I thought was reasonable considering how powerful this vac is.
Supplied with a choice of two brightly coloured nozzles for clear in-pond visibility, the pond vac is capable of removing particles from all areas of the pond. Cutter blades are built into head assembly so that any large debris such as leaves passing through can be chopped up to avoid blockage. Power Consumption: 60 Watts. Cable Length: 10 Metres.