CrystalClear KoiAir 1, Complete Pond Aeration Kit, Water Garden Oxygenation Bubbler System Adds Oxygen to Koi & Fish Ponds, Outdoor Diaphragm Compressor Pump, Air Line & 1 Submersible Diffuser Stick

The media could not be loaded. I just finished constructing a new pond four weeks ago and am still getting it cycled. The volume of the pond is approximately 1500 gallons and 3 feet deep. I was going through a pea soup algae bloom and added a UV clarifier which has really cleared up the water in the last few days. I have now added an aerator. I purchased the CrystalClear KoiAir Mini Water Garden Aerator Kit and received the item on time and within the promised delivery date. The kit consists of the air pump, sinkable air hose and a single diffuser. Installation was very simple and I was up and running within 10 minutes of unboxing. As you can see from the video clip, the kit provides quite a bit of aeration and really agitates the waters surface. I have it located on one end of the pond as the opposite end has the waterfall return. My hope is that the aeration occurs on both sides of the pond with the area in between being the currents formed so we can see the fishes clearly.The pump itself is very quiet and is drowned out by the sound of the water rippling. So it is not that bad at all. The only negative is that the diffuser is not that heavy. It does sink but because of the "strain" on the air hose the diffuser I found that the diffuser wanted to flip over. I used nylon zip ties to secure the diffuser to a small stone and this have kept it upright at the bottom of the pond.So far, after one day of operation, I am pleased.No complaints on the supplier and the operation of the aerator. It is a good purchase and I am very pleased thus far.

Update. In my 5th year using this product !! Still works great.I have this outside in Buffalo NY to provide air circulation during the winter since my waterfall and summertime pumps are off. I covered it with a big plastic tub putting a couple 2” pieces of wood under the tub for airflow. I added another 10 ft to the weighted hose that came with the pump for a longer run. My pond is 14x6 and 3ft deep. I dropped the aerator in so it sits on a rock a foot from the bottom of the pond, 1ft is recommended. The plate the aerator is mounted to is heavy, that along with the weighted hose is necessary. If these things aren’t weighted the aerator or hose will float, if you’re not buying this product make sure the one you do buy has these features. The pump is quiet, and I had zero problems with install. In Buffalo we just had 4 days below zero, a blizzard and wind chills of 25-35 below zero. My small surface heater froze in surface ice but the bubbles from this thing have keep a nice 2ft diameter hole open in the ice letting that poisonous Nitrogen gas out. I highly recommend this product!

I have a 5000 gallon pond and it does a great job on aerating the water. Highly recommend.

This works so well. So worth the money.

Update October 2020:Following 24/7 duty cycle the past two years, I noticed that the quality and quantity of bubbles was dramatically waning, even after changing out the foam filter as recommended by the vendor. I opened the unit and discovered several gaskets were worn. I spoke with the vendor and they suggested a rebuild kit that they sell for around $10. Shipping cost doubled that amount, but this is still a reasonable price in my opinion. The vendor supplies all parts that should be replaced. The job is not hard, but I do suggest you try the air flow before installing the main cover, as I hadn’t seated one assembly properly, initially.When I put the pump back onto the diffuser hose, I was surprised that there still was no bubble flow, even though I knew the pump was pushing some air now. I reeled out the diffuser and discovered it had become water logged. I emptied the water and took advantage of the removal to thoroughly clean the diffuser too.All assembled - I’m back in business, just like new again. End of Oct 2020 update.Introduced the bubbler today to my 8000 gallon koi pond. I placed the bubbler at rough center of the oval shaped pond, probably around 3.5 feet depth. The bubbles are of good quality without being a roiling volcano. I think the water action will do a handy job of its primary reason for purchase, which is to keep an open area during freezing New England winters. The fish seem to really like the bubbles too, which is nice. First impressions are quite positive. The device feels and looks to be made with quality materials, including the hose. While I can’t comment on long term of course, I’m very happy with this purchase.

First order came missing basic parts. But Amazon made it right and sent another with all parts. Ready to put together good hose. Solid pump. Very quiet and efficient. I am very happy with it.

I was surprised how quiet the koiair air pump is running and I was really surprised how much air this pump was pushing out in a a 4 feet dept of water , very heavy solid pump. I hope it last's for a long time , I only will use it in winter to keep an area ice free so the gases can get out . A year ago I bought a cheaper pump from a other company, this thing did not pump one tenth the amount of air into the water then the koi air pump and it stopped pumping air in the water after about 8 months .

product was as described. fast shipping. great price.