Hi Sunshine,
Have you considered raising the main tank on blocks? Then you can let gravity transfer the water to the smaller container. Of course, that's assuming you're draining into something like 25ltr containers.
Hi Phil,
Nice trading name, checked out your site as I was sure I'd seen it before - yes, I have - in AWC! Welcome to the other side of the pond, hopefully you might pick up some hints from us Brits
To both Sunshine and Phil . . .
How about filling in a bit more of your profile and signature - don't be mystery men - give us a bit more information.