Looking at going for a swirl-pot set up on the Rush.

For the low-pressure lift pump, what are the issues (if any) in using one of the small solid state 'cube' pumps rather than a Red Top or some such? Both types offer enough flow rate, on paper at least.

That's what I am using and I know many others do the same.
The cubes can't lift a great height so I have mounted mine level with the top of the tank which is the same level as the bottom of the swirl pot

im using the new posi-flow low pressure pump that has been bought out to replace the cube pumps, they flow up to 10psi (depending what one you get) and it was only £30.

here you are linky

HTH's

[Edited on 11/8/10 by omega0684]

we sell the weber version of these pumps

much MUCH quieter in operation.
more reliable.
come with filter.

they are £40.

- colin.