This shows how a small vac-pump can also re-cycle air from the partial vacuum at the top of the upper aquarium.
Whats the purpose of the jar? Why not just connect the tubing?
 if the water is pulled into the vac pump the oil emulsifies and buggers-up the comp.Even moisture going straight into the vac pump is not good.The jar is a simple precaution.
I recall a quote by Sir David Frost: &quot;A person of culture is someone who can listen to The William Tell overture by Rossini without thinking of the Lone Ranger&quot;.<br/>culture my arse! Hi, Yo Silver!<br/><br/><em><strong></strong></em><br/>
Awesome job, that looks really cool too.

About This Instructable




Bio: refrigeration engineer; M.O.D. trained; from Christchurch Hampshire[before it was removed to Dorset] moved to Eilat, Israel in 1987.
More by romaurie:Paint brush sealed in glass jar with thinner. "Romaurie-Effect": inverted aquarium in shallow base aquarium. Romaurie-Effect combination vacuum-pump/air-pump 
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