Re: [Biofuel] Any advice on pumps?

2007-07-09 Thread John Estill
True enough. Maintenance is key. (With everything we do. House, car, garden, relationships...) In my experience, the gear box gave out before the tubing did. (Kinda odd) Still, I would expect the tubing to last one heating season. Message: 9 Date: Mon, 09 Jul 2007 08:59:23 -0400 From: Joe

Re: [Biofuel] Any advice on pumps?

2007-07-06 Thread John Estill
Home-made peristaltic pump? http://en.wikipedia.org/wiki/Peristaltic_pump When I worked at a factory, we used this style to pump water out of the pit under the foundry pot. As I recall, there was gear noise, but that may have been because it was metal gears. The nice thing about this

Re: [Biofuel] Solar Concentrator PV Modules

2006-05-16 Thread John Estill
It's been about 4 years for me, and yes, bio-based oils were/are being tested/used by the larger utilities. A quick google on bio-based transformer oil will bring a bunch of hits. Hakan Falk wrote: Mike, Many of the high voltage transformers in electricity distribution are filled with oil

Re: [Biofuel] Cooking oil isn't just for diesels anymore.

2006-01-20 Thread John Estill
Coming from a public utility substation maintenance background, one may or may not be aware that most transformers used in getting the power to your house are filled with a highly refined petroleum oil. (it is clear) It is used as a cooling agent and as an insulator. There are companies out there

[Biofuel] MG diesel conversion Was:Re: [Biofuel] seeds on the brain - small scale diesel production and motorcycles

2005-07-14 Thread John Estill
--- bob allen [EMAIL PROTECTED] wrote: Michael Redler wrote: Bob, I don't disagree that there is an abundance of waste vegetable oil out there. General question -Is it really waste when the used oil is puchased (in larger metro areas) and then sold to be used in pet/animal food? I am