Auto Top Off advice please

[gridley]

We are working on our first tank and have just set up our ATO. We bought an ELOS system. In our test run, the pump worked fine, shut off and then the water continued to siphon from the ATO tank through the tube and into the sump. If I understand the dynamics of water, I would have to have the discharge of the tube above the water level in the ATO.

Is that correct?

That being the case, I would have to have the discharge from the tube quite high which would, I think, result in considerable splash. How do others get around this situation?

Thanks