
Before that, there was the most common compressor of an unknown company, cheap, quite noisy, BUT! since it was in a cabinet under the aquarium and lay on a soft lining (although it is recommended to place it above the water level, we had a non-return valve) - it was almost inaudible! This compressor, having read reviews, was taken in the hope that it would turn out to be really quiet. But he hums so hard! For several months I have not got used to the noise, it is impossible to fall asleep! Even during the day you can hear it from every corner of the apartment! There is no switch on it, so you have to climb and tear it out of the socket! You could buy a compressor for 500. and don't overpay! I wouldn't have bought this one for that amount of money! Now there is a fairly wide range on the market. Very upset with the purchase, because the declared noiselessness is not even in sight!

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