I need some suggestions for a pump. Here's my setup.

I put my collected WVO through a 1/4" screen to get out the big pieces. The liquid goes into a barrel. I then want to pump that oil up into a big cone tank to let it seperate.

My first thought is to use a waste water or sump pump or effulent pump or a sewage pump. Something with a mechanical float switch.

Anyone have any suggestions? In particular, pumps they've used.

For a small portable pump that does all tasks you can't beat a Honda GSX25 powered water pump.

Sorry, should have specified that I want an 110v electric pump.

Perhaps a Chevy Small Block pump hooked up to an AC motor? You can get the pump from just about any auto store and mod it yourself, otherwise someone here sells the pump modded already for about $50.

www.redlinepumps.com
Their pumps are tough suckers!

if you're going Jocab's idea to use a chevy pump..use a big block pump instead or a small.

if you can drive with a 3600rpm motor..the pump will take with all day long..oh and small chucks..it just spits them out.. I have sheared a few shear pins, ie nails, but all in all hard to kill the pump. I use a spider coupling between the motor and adaper shaft on the pump end. the pump end needs 31/64th drill I think.

someone else had the idea first, but they use a starter motor to drive it.

-dkenny

Graydon,
As I have pointed out before, Redline pumps ARE Chevy oil pumps. I just can't see spending 500 dollars for something you can make yourself for a lot less.

Dkenny,
I drove one of my modified pumps with a modified starter a few years ago. Worked great for about 6 months. However, repeated long term running took it's toll. It's much easier to use a small AC motor and an inverter. One time I saw small white things in my Biodiesel. I said what is that? I emptied the drum and took a look at these small pieces. I took my a few minutes to figure out that it was one of the white drum bung gaskets. Not only did the pump suck the gasket through a 3/4 inch pipe, it chewed it up and spit it out with out even slowing down! It was hilarious! I have also hooked up a BB chevy water pump to a motor and tried that. Pumped water at 48 gpm. It was running at only 1725 rpm. It did not pump thicker oil very well. Priming problems. I did not get the chance to try positve head pressure to the pump (below oil level) or 3600 rpm. I like experimenting with readily available, inexpensive, components. The coolant pump on a DMax flows 60 gpm!

quote:

Originally posted by Joe_M:
As I have pointed out before, Redline pumps ARE Chevy oil pumps. I just can't see spending 500 dollars for something you can make yourself for a lot less.

I agree, especially when you can also make one that flows a lot faster for a lot less. I see the redline site quotes 8-10 GPM. My pumps ( SBC) do 20+.

The redline pumps are just using the stock puny ports which are very restrictive for our purposes.
I drill out the sides right in front of the rotors and weld in 1" elbow fittings. This makes a big difference not only to the flow rate, but to the work the motor your driving the pump with has to do. I weld up the stock ports to block them off as I don't use them.

I use a 24V, 2750 rpm electric scooter motor on my Collection pump and even on 12V, I still get probably around 14-15 GPM. I have another which I drive off a mains Motor which is 1/4HP but it isn't enough for long runs. For this I would recommend either a 3/4 Hp 1440 or 2880 Rpm motor depending on how much flow and pressure you need. Be aware that with these pumps they can develop in excess of 100PSI with the bypass blocked off so don't shut the flow off with a valve because it will either blow the hose or stall the motor.

The pumps are tough. The only time I have stalled mine was when it ingested a cloth Table Napkin. It nearly got through it though! Chips and even small bones go through with a small Hiccup and a crunch and that is about it!
Last year I pumped fat so thick it extruded out the end of the hose and held it's shape perfectly for over 5 minutes till I wiped it away.

I have read a BB pump only does 15% more volume than an SB Pump. Perhaps the BB pump with mods like I do to the SB pump may make the difference more significant? They are not very common here but one day I'll have to get hold of one and put it to the test.