Blagdon Pond Oxygenator 3600, 20 Outlet Air Pump for Ponds Up to 22,500 Litres (Koi Ponds Up to 11,000 Litres), Suitable for Aeration and Oxygenation in Hydroponic and Aquaponic Systems

I had a Blagdon Pond Oxygenator 2400 for a number of years, maybe 4? Over time, it did get a little louder, but it was still pumping out an impressive amount of air. I abused it a LOT; the lid had come off, I kicked it about accidentally a few times getting caught up in the lines and it still went strong after rolling down stone steps and dropped a couple of times on grass. Then I did a silly and left the pump, turned off, at a lower level than my pond doing maintanence while leaving the line and stones in the pond connected to the pump. Of course, water crept up through the lines and fried my pump when I turned it on without realising physics happened. For a couple of extra pounds, I bought the 3600. It's a little bigger than the 2400, but it's a lot quieter than I remember the 2400 being despite putting out more air. Note, while it is quietER, it is not silent. It's pretty much plug and play, although you will need a spare plug head to attach to the wires as it doesn't come with one. It came with two thick plastic manifolds, which seem durable. Although, paradoxically, one of the nibs had snapped off the manifold either in packing as a QC failure or in transit. A little hot glue fixed this, though, so it's a non-issue but I thought people should be aware. The 2400 I had came with a rubber 90degree angled adaptor to fit the plastic manifolds in, though this rubber adaptor tube kept slipping off under pressure of the pump. The kit does come with metal clips to hold the rubber tube in place, but I'd lost them and had to resort to using a zip tie after it kept popping off. With the 3600, this hasn't been an issue, even without securing it with the metal clips that come with it, it has stayed on so far (about 2 weeks? I think). My only issue is that the included plastic manifolds don't let you adjust the airflow; you'll need to buy a seperate manifold for that with valves built in, or buy in-line valves. All in all, a really good piece of kit that I highly recommend. EDIT: I rushed in to purchase as mine crapped out due to water, and a week later they've dropped the price by £20. A little annoyed at myself being overzealous but grab yourself a DEAL with it being £77.

Easy to set up and looks to be quality . it is to replace our last Blagon oxygenator that lasted 3 years . prompt delivery

It is very powerful - and keeps the air stones bubbling. I know it was excessively hot last week but it did cut out once or twice which my old one never did. I have now made a ‘shade’for it so hopefully it will be ok now.

Good item at a good price, seller recommended

Amazing pump does a brilliant job for our pond it’s just very loud buzzing humming sound so we had to put ours in a storage box insulated with polystyrene so the noise wasn’t so much because we could hear it all night if we left our windows open other than that highly recommend

So i have 2 of these air pumps and 1 went faulty. I contacted them and they demanded you to pay for a service kit even though on this occasion my issue described had nothing to do with any of the parts in the service kit. so yep wasted money buying a kit that didn't fix the issue. the pump in question was purchased in 2022 and replaced jan 2024 after a lot of hard work they really do not want to replace these pumps. Anyway after 2 month, they replaced air pump that has gone faulty and they flat-out refusing to resolve the issue. so all I can recommend is buy a different company air pump cause if you need customer service these are not the company to deal with.

Bit loud but solid build

You can never have to much air for you koi and it helped my filter to clear the green water