Superfish Waterfall Filter 44cm

Works well and looks great over pond

I am basically really pleased with this. My only slight gripe is that the "knock - outs" are far from being knock-outs; I had to drill about 20 small holes and use a chisel to be able to attach the inlet pipe. The upside is that this is made from strong material I suppose. Other than that, very pleased.

The media could not be loaded. Very easy to set up but did leak a bit at the inlet… silicone sorted the problem (I would have used some anyway as a precaution. Still tinkering to get it completely level but so far so good.

Purchased this for building my pondless waterfall, it's a bit overkill as I didn't really need a filter, but hopefully it will keep the water clearer.Ended up cutting the lip off and it gets in the way. Didnt use the seal, just lined at the back as its safer to prevent leaks.Not sure why people are moaning about cutting the hole out, if you didnt you would run the risk of having leaks as there are 2 holes, one either side at the bottom. It would have been better if the hole was at the back to be honest. Just use a spade drill to drill through the plastic, it doesnt have to be accurate, just dont interfere with the threads. I used PTFE tape and plumbers cement to seal the threads and attached pipe respectively.

Pros and cons. First the Pro.I've already got an external canister filter with multiple layers of mechanical and bio filteration so didn't actually need more filtration - but the output from my filter is something like 6000 ltrs an hour so caused too much splash. I just wanted something wide to hang over the edge of the pond to feed the water back in without making too much of a splash.This does exactly that.It comes with big, fat, course and fine foam filter pads and some really nice bio balls - plastic cage balls containing lots of small ceramic balls.This would probably work as quite a good filter on it's own but I didn't use any of that filter media. I chopped it up and used it in other filters. That foam and balls would have cost a few quid if I'd bought them elsewhere on their own :)So, instead of the foam etc I put large pebbles into the bottom this box and then progressively smaller pebbles and gravel to fill it up. Then planted some plants in it.So water coming from my canister filter is fed into the bottom of this box - it perculates up through the gravel and plant roots and flows gently over the wide lip of the box into the pond without hardly a splash.There's a 'flange' for securely attaching a pond liner but I chopped that off as well - I don't have a liner and the flange is quite big so prevented me burying the box so that the lip rests close to the rim of the pond.Now the cons.In the bottom of the box is the 'knock out' panel for making the hole to attach the pipe. I knocked and knocked but it wouldn't budge. I was afraid if I knocked any harder I'd crack the side of the box. In the end I drilled it out.So, that knock out panel at least in my box, was not knock out. There's actually two of the knockout panels so you can choose which side to plumb in - so, in a way, I'm now happy that the knock outs are pretty sturdy and refuse to be tapped out accidentally - wouldn't be nice if the other one just popped out on its ow - so maybe this is a Pro rather than a con.Once the knock out panel was out you can screw in the pipe connector. The box is threaded to take the connector but the connector is a lot smaller than the threaded hole in the box so fits quite loose. It took many MANY wraps of PTF tape to make it seal but I was just nervous about the amount of ptf tape in there. I scrapped that PTF and wrapped about 2 foot of insulation tape around the connector and screwed that in nice and tight.any more cons? er. No. None that I can think of.

Warning! If your pond is a little grubby, the foams do their job and soon clog up, making the water spill out all around! Caused my pond liner to float!! Remedied by sitting the unit in a larger “catchment” bowl of extra liner so that any overspill was directed back into the pond, not into the garden. Works fine and is a nice effect, but allow for overflows!!!

It's not as heavy as I thought it would be , the filters are great and the waterfall flow is jus right. Could have done with being a bit heavier to make it more stable but I put some rocks on it and it's now fine.

Such a pity you virtually have to smash the whole thing to try and put the hole in for the inlet pipe. It's fully sealed over so you need big holesaw or other tools to produce your own hole carefully. Mine cracked so hard to use shit loads of sealant all round the thread . Crap basically which is a shame as the media is good. Also it has the bio media at the bottom and before the mechanical foam filters which is totally wrong