HQUA PAS20 Pond & Lake Aeration System for Up to 3 Acre, 3/4 HP Compressor + Two 100' Weighted Tubing + 2 Diffusers

I purchased this product a year ago, wondering if the affordable price point would mean compromising on quality. After about a year of use, I did run into some minor issues with the pumps and diffusers. However, the outstanding company support I received completely changed my perception. They were incredibly responsive in troubleshooting and even sent me additional parts to prevent future problems.Many products can have initial flaws, but it's the company's commitment to standing behind its product that truly defines its value. The ongoing, excellent support I've continued to receive over the past few years, always ready to assist with any concerns, is why I consider this a five-star product. This level of dedication is invaluable. A special shout-out to James Zhu!

The PAS20 Pond Pump works great and helps keep the fish active and plays an important role helping to control algae. I set up a 90-minute ON/30-minutes OFF automatic cycle on a timer (bought separately).Customer service is Excellent!These are my recommendations (and I will follow-up with my pump rebuild experience):1. If you like the pump performance, I recommend buying a Pump Rebuild kit (for your pump model year) in advance, so you won't forget.2. If you plan to rebuild the pump, I recommend taking several photos of the pump before & during the rebuild process so you remember how to re-assemble the pump.3. If you plan to rebuild the pump (~$50 rebuild vs ~$600 pump), I recommend buying spare screws ($10 for 25 screws M6-1.0x14mm FLAT Head screws).4. I recommend red loctite to imitate the manufacturers decision ensure the piston stays tight when it gets hot.5. Removing the 12 screws is easy, but you may need a socket wrench for leverage instead of a tiny allen wrench.6. The piston screw removal (1 screw per piston) was the most difficult task, and I found a quick solution. The two (2) Flat Head piston screws are installed with permanent red loctite, so I simply used a #2 screw extractor (drilling a hole into the socket, and using an extractor to remove the screw), which is a predictable process for me. (I had unsuccessfully tried a propane torch to soften the red loctite, so I will use to use screw extractors in the future).7. The piston seal installation was tricky. The seal fits between two pieces of the piston head, and fits tightly within the piston ring (the seal tends to twist out of position). I decided to place the piston in the highest position, fit the ring, then rest the seal & piston cap on the top of the piston-ring. Then I used the screw (adding red loctite) to uniformly press the seal into the piston.This is my rebuild story to help you: As advertised, I followed their instructions exactly (including an automatic on-off timer to prevent overheating), and the pump worked maintenance-free for more than 2 years. After about 27 months, the pump became significantly louder but the pump was making bubbles (in hindsight, this louder noise was evidence of the seals degrading, and the pumping power was significantly diminished).I recommend preparing the Pump-Rebuild process quickly after the pump gets louder (AFTER 2 years).I bought the PAS20 rebuild kit in advance (and make sure you get the kit compatible with your pump model year).Eventually, our pump stopped making bubbles, so I successfully rebuilt the pump. After trial & error, I developed the recommendations above (I had to buy screws in the middle of the rebuild process). In the future, I think I could rebuild the pump within about 3 hours (I consider myself to have average DIY skills).

I bought this item 6 months ago and it has been doing a great job. However, the pump lost its air pressure. I contacted the company and they responded right away. They sent me a new rebuild kit to fit the problem so i could get my pump up and running again. Very pleased with this company.Please

I have a deep pond- 15 to 20 ft deep so I needed a powerful pump and this fit the bill. I was unsatisfied with the noise level however. I wanted to keep it simple and install close to my house but the noise was unbearable as I appreciate listening to nature. This required me to dig a line to an outbuilding and build a cabinet to place the pump in. Do not know the longevity of pump but I was impressed with costumer service when I needed a new part based on my own fault of breaking it.

Long term review. I've owned this system for 5 years now and the air compressor finally siezed up. Up to this point, the compressor has seen pretty much 24/7 operation for 365 days a year, with some off periods during winter when it was only used if my pond iced over and our ducks needed water to swim in. Very easy to install, plenty of length on the hoses and the bubblers perform great. I installed the compressor inside a plastic storage box with a liftable lid on it. Drilled holes in the sides for cooling and ventilation and to allow a power cord in and the air hoses out. As for the recent compressor failure, it is now winter and I disconnected one of the air hoses and closed the isolation valve to it, so the compressor was running air only to one hose instead of the normal two, so I'm wondering if the increased backpressure had something to do with the failure. No worries in the end. I'll just another compressor and move forward. I may try to get the unit to rotate again, but my bet is the rings are seized on the pistons and I have no desire to do a rebuild.

This works really well. Easy to use and is working great. Highly recommend.

Keeps our salt water canal area behind our home moving…

Pump does not last long however customer service is great and replaced it