bathtube not seal correctly?

[aboyz]

Hi,

Just got my trailer this week and I have notice that the bathtub are only sealed on the two side. the inner are not sealed? is that how it is? do I need to buy some silicon selant and seal it?

If so anyone know what selant I need? can someone link me to amazon website to purchase one if i need one.

Attached you will only the two side is sealed with silicon and the inner bathtube is not.