The Sims 2/Plumbing/Toilets

All toilets function the same, except the more expensive toilets satisfy the Comfort need as well as the Bladder need.

Using a toilet satisfies the Bladder need. Sims will get up once the meter is full, unless the action is cancelled. Using a toilet dirties it over time. Elder Sims take twice as long than other age groups to satisfy their Bladder need.

Neat Sims will autonomously flush the toilet. Flushing toilets reduces the chance of it clogging up.

The Clean interaction is only available if the toilet is visibly dirty, and fully cleans toilet. Increases the Cleaning skill.

The Play interaction is only available to Toddlers and only happens autonomously when they have low Fun. It satisfies Fun, but lowers Hygiene and also creates puddles which lowers Environment.

The Unclog interaction fixes blocked toilets, increasing the Mechanical skill. Clogged toilets can still be used. Clogged toilets can be prevented for longer by flushing frequently.