I would suggest that an inline pressure accummulator tank and a valve to your aerator stone would be a wise move if you are using a fridge compressor since they are not designed to run continuously. Also, since they are free it may also be wise to hook up several to a "manifold" leading to the tank. It is then a simple matter to hook a pressure cutoff switch to the tnak and use it to control the compressors on/off cycles. Iff one poops out (and you notice) replace it with a spare. We used small dia. rubber hose slipped over the outlet tubes and secured with hose clamps connected together with inexpensive plastic "tees".
Dana --- [EMAIL PROTECTED] wrote: > > Those hermetically sealed fridge compressor are not > that suitable. Their > motor windings insulation are meant for gas cooled > and not air cooled. > Therefore the compressor need to run constantly and > cannot be cycled( by > pressurestat) <snip>. > > __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/