Electric oil extractor

[gjgm]

Does anyone have any experience of using an electric oil extraction pump? Was it any good and do you have a web link?
I should perhaps add that I have a Pela Extraction pump but I've never really found it to be that good. I've never actually used it on my current engines but when I used it on KAD32's it took an eternity to get the hot oil out of the sump. I reckon the oil will be stone cold by the time I get all of the oil out of the my current engines (TAMD63p's) and even if I did use the Pela, I'd still have to decant the extracted oil into a large waste vessel because it only hold about 6.5 litres.
Anyone have any suggestions?

I also struggle with the Pela, but I think it might be down to two things. One, a bit of grit or muck in the metal extraction tube will seriously reduce the flow, so make sure the pipe is clear.Second, and I havent tried this, some say you should cut a taper into the tube end so that it doesnt sit flush against the oil sump casing.
When it works, it seems ok, but I agree , too often it is painfully slow.