thats the beauty of an Eheim, once it is the air ia properly bled and assuming you have the pump isolated from vibrating the case Eheims are damn near totally silent. With my 1250 I literally have to get my ear within about a foot to hear it.
__________________
...i hurt...
do me a favor, disconect me...
they can re-work me
but i'll never be top of the line again
...i'd rather be nothing...
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