View Single Post
  #7  
Old 09-08-2004, 08:56 PM
TimFreeh TimFreeh is offline
Registered User
 
Join Date: Aug 2001
Location: Milford, DE
Posts: 1,572
I've made a couple of these over the years and I've had the best results using an old 5 gallon propane tank - it's strong to resist any vacuum source you can hook up to it and there are plenty of old tanks around since overfill protection valves are now required on all portable propane tanks.

My latest set-up is very slick, I've got a couple of lengths of pipe and a few valves that permit me to supply vacuum or pressure to the collection tank. I suck the oil out of the sump into the old propane tank then use pressure from the shop air compressor to push the oil out of the propane tank and into a waste oil container.

The best hose to use is the stuff they sell at hardware stores for water supply lines to ice makers, this hose is reinforced internally with some kind of rope mesh and it will not colapse under any vaccum I've been able to generate.
Reply With Quote