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Re: [APD] Air pump noise

I solved my problem by using a transformer to reduce the mains voltage from 220V to 110v. This has made my Tetra APS400 quiet and its rubber diaphragms last longer. 

This model has problems with the diaphragms that last only a month or two.. no reply from the company!

>I have a 100 gallon walstad tank, and I recently put a little air stone in front of one of the pumps to make sure that everybody is getting whatever dissolved gases they want. The problem is that the air pump is really noisy. I replaced it with a newer one (but still the smallest and cheapest), but that was just as loud. I'd be willing to pay a premium for quiet, so any recommendations on some more silent brands?

Raj, vu2zap
Bengaluru, South India.

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