what is the quietest air pump for my ET-2 ?


I am using a High Blow HP-40 air pump for my Eminent Technology 2. I do have a 15m pipe to put the air pump in another room. As i do not like to close the door all the time I am looking for a quiter air pump. Any suggestion? Thanks.
thuchan
thanks Perrew but the link doesn´t work or is incomplete, may I ask you to repeat the link. many thanks
Strange it worked for me
http://forum.audiogon.com/cgi-bin/fr.pl?vaslt&1097358102&read&keyw&zzsimon%20yorke

otherwise search for Simon Yorke on System and then pick the system called Northern Lights.
ok - got it now. Big machine but looks good. The question is are you able to run it the same room . I will ask Nortern Lights. Thanks Perrew
I have utilized several compressors for my maplenoll. I now use a JUNAIR compressor that is pretty quiet but i could hear it if it was in the same room. I put it in a closet and i can not hear it. Junair also sells a compressor that is encased in a sound insulated case that you can not hear but its a little pricey. Not sure of the pressure a et2 takes so depending on the pressure, there might be many alternatives. If you look on my maplenoll string, there are several references to compressors particularly WISA superquiet and others.