Pond Boss Forums AERATION Systems questions New System Recommendation

I was in your position about 5 years ago. I researched lots of systems. I was looking for a system with low maintenance and high efficiency. My puddle is similar to yours. I went with Airmax PS20. To date, I have done no maintenance other than change/clean the compressor air inlet filter and burp the diffusers a couple times a year. The diffusers move more water per cfm of air than a membrane disc diffuser or other. They advertise no maintenance on the diffusers and I have seen no drop in performance after 5 years. I've seen lots of posts from folks with membrane diffusers that talk about pulling them up every year to clean them (different for every pond I'm sure!). The compressor is oversized for my puddle so it doesn't break a sweat in my pond which means longer life. I only have to run it 8 hours a night. I see no downside except.....they are pricey compared to most other systems! I recently found out that Rainman(Rex) here on the forum sells Airmax so he might be a good source.