I've just invested in a new air pump.
Good deal on eBay. I think
Anyway this pump is a replacement for my Charles Austin pump.
They both run with the same output but I can confirm the Hailea is slightly quieter. But neither pump is louder than a clip on Fan.
It now remains to see if the Hailea can run non stop for 3 years like the Austin pump did. The only thing I've done to it is clean the filter.
I'm going to replace the diaphragm in it and keep it as a spare.
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