Had a thought?
The tides exist only because of the moons gravitational effect.
Based on the volume of water involved, you could calculate the mass needed to
create this effect, and also based on the size of such an object, how far away
it would need to be to look the same size as the moon.
Based on these calculations, you could then say which model of the moon earth
orbits best fits the data.
Now I have not done the calculations by a moon but with a moon only 41 kms across
rather than 3,400 kms across, it simply will not have this effect.
Now if you say the sun is in a similar position to the moon and a similar size, then it
should have a similar effect on the water but it does not. Also what stops the moon
simply falling into the sun if they have similar pulls and similar locations in the sky,
yet in reality they do not.
I love these questions, because it is so stupid, it is a good joke to play with the
ideas to give ourselves some entertainment.