Tetra Pond Air Pump Kit, Provides Vital Oxygen to Pond Water (19706)

Stopped working after a couple of months. 5 days following the Amazon return window. I took off the cover and found loose piece of plastic. It is a broken piece off of one of the 2 internal pump holders. I hope the manufacturer will replace.

plenty of air off both ports

Based on what I've seen so far, my biggest problem will be multiple trips outside to verify it's still running! This is the quietest pump I've ever used! Easy to set up and that long cord lets me plug into the outlet on the house, much better, and way safer, than what I had to use before. Very happy so far!

I'm thinking 2024-25 winter in Chicago area is going to be very cold this year so I'm doing some pro-active planning for pond. When I added it to my cart, Amazon shows I had purchased this same Tetra air pump in November of 2021 and I have to say it has been going strong 24/7 in my pond since then. It's been very quiet and super reliable. I had purchased a well-know pond company's air pump a few times previously and they never lasted a year. I didn't have great expectations for this pump, but it's proved to be a fantastic work-horse of an air pump.

Options of one or two air pods; lots of air line, easy to cut to size and deploy. Quiet continuous operation for a couple of months now.

It isnt silent that is for sure. Ive had it running a few months now but it is a constant loud hum. Similar to a fridge I would say.

Noise level is very low

It works. It’s got a long cable that looks pretty durable. A pair of decent air stones maybe 1.5 inches in diameter and a fair amount of air tubing along with various connecting pieces and valves to regulate flow. I should point out there are 2 outlet ports on the pump itself so air can go out of both tubes at the same time. I have it driving a pair of sponge filters in a 2 ponds that are maybe 3 feet deep max.

I used this pump for the entire winter last year and it never stopped working. I live in New Hampshire where temps in the winter get below zero almost every night and most days. Cha-Chi, my goldfish, survived the winter in his pond because of this pump. The pond never froze over in the area where the O2 was pumping which allowed Cha-Chi to live out the winter in the pond. I have the pump running again this winter and so far, so good! I did have to use new tubing when I installed the pump at the beginning of this winter because the old tubing had gotten a little stretched out and brittle, but with the new tubing inserted, it's working great!

Works great! Keeps a nice area unfrozen .

The pump stopped working after a few hours

Been running in one of my ponds for a month, works as well as any other pumps. I’ve been using more pricy brands in my two ponds, and even recently recommended the other brand to a friend who bought a new house with a pond. Two pumps gave out at the same time after 4 years, I had one back up of the other brand, and thought I’d run that one one one pond and this one in another, and see which one is more reliable over the long haul and update review here at Amazon.I used the included adapters to blend into one stone, and this pump matches the air flow of the single output of the more pricey pump. The tubing is better quality with the Tetra, and the square stone seems to produce more air bubbles. In fact, I used one of the Tetra stones and replaced the round that came with the other pump. Also the included check valves is a nice feature that also does not come with the more expensive cousin on the other pond. So I used the extra check valve from this purchase to add more safety to the other, more expensive pump.Starting to see the trend? This less expensive model included parts, I’ve been using on the other more expensive pump that does not include them.I like the two outputs on this Tetra. In winter, condensation in the line can freeze and limit or block air flow, so I may go to two in winter to lesson the chance of a line freeze up and a pond freeze over.Less money, more included parts, better quality accessory parts, and the output on this and more expensive model are the same. More expensive has 2 or 3 year warranty, this has 1 year. We will see in the long haul which one is more cost effective, and update the review then.This early in the pump-off, this Tetra is winning.

The APK100 air pump is a nice looking unit and is good at its job of aerating our small (800 gallon) garden pond. But it requires periodic maintenance that involves extra expense. I'll share some things I've learned along the way, which should help you decide if this is the pump for you.[1] I had to replace my first APK100 pump after three seasons. The molded bottom case cracked in the Diaphragm Holder area, which disabled one of the air outlets. Normally poor/missing air flow is due to a failed rubber diaphragm, but unfortunately this was a unrepairable crack. See the photo at the end of my review.[2] The APK100 pump does not use a motor. Instead it has a large AC powered electromagnet and two magnetically coupled rubber diaphragms. These vibrate 60 times a second to create air flow on the two outputs. That's a lot of movement, so it is expected that the rubber diaphragms WILL fail every 6-12 months of continuous use. My repair technique is to wait until one of the air outputs has little or no flow, then I replace BOTH diaphragms at the same time. Tetra sells a repair kit (#77878) that includes both diaphragms. Like this item:[3] As some other users have mentioned, I experienced the issue of losing air flow shortly after the installation of my first pump. Tetra Support sent me a repair kit (two diaphragms, no charge) and unfortunately it did not solve the problem. I found that the issue was caused by the plastic tape that the factory wrapped around the electromagnet. The tape's adhesive lost its grip when the electromagnet warmed up and then its end peeled away. The loose end curled-up on top of one of the bleeder hole ports on the bottom case, blocking the air entry, which disabled the air diaphragm. I removed the factory vinyl tape and replaced it with my own, which fully restored the air flow. See the photo (below) for the location of the affected bleeder holes (requires removal of electromagnet).[4] As others reported, I received broken air stones too. But I don't consider it a big deal since the loose plastic air hose nipples can be re-installed in a couple minutes using a hobby/craft hot melt glue gun.[5] The pump is a bit noisy which disrupts the tranquility of our fish pond. Moving it behind our waterfall helped a bit, but that didn't mask all the vibrating noise. My solution was to use a timer and only run the aeration system at night time (from 10PM to 4 AM) when we are unlikely to visit the pond. The added advantage of the timer is that we no longer run the Tetra pump 24 hours a day, which should extend the life of the air diaphragms. I am using this timer: Final conclusions:The APK100 Air Pump Kit works well for small garden pond aeration. It includes everything needed for a typical installation: Long length of air hose tubing, two sets of check valves, flow control valves, and large size air stones. Instruction manual is well written too. But the pump makes some noise and requires ongoing cost due to the expected periodic maintenance.