RO line keeps popping out of float switch

[asylumdown]

This is the third time it's happened, and the last time it happened, I siliconed them together. Since the Reservoir is in the utility room in my basement, I didn't notice until a pretty significant amount of water was on the floor.

This can't keep happening, I have to assume the problem is with my float switch. Does anyone know of better float switches that have john guest ends to them or something? This thing just holds on to the RO line with friction, which obviously isn't enough.