The kind of toilet used in one region depends on the cultural norms and taboos associated with personal hygiene in that region. Most Western toilets use paper for cleaning, while Asian countries have squat toilets.
Pit toilets are very primitive and basic, used in campgrounds and poor countries without proper drainage system.
Composting toilets are a variant of the pit toilets and offer an eco-friendly mode of waste disposal.
Heads are toilets located on boats and yachts; heads use water pumped in from the sea to flush out waste.
Flush toilets are most common in Western households.
The tippler toilet is used in England and is cleaned by a flush of water from above that carries the waste into gutters.
Residential areas use gravity tank toilets, where a separate cistern holds water for flushing the toilet bowl. Commercial areas also use them. Gravity tank toilets are the least expensive and easier to use and maintain.
As opposed to gravity tank toilets, the tank and bowls of single piece toilets are within the same structure. These toilets are preferred for their aesthetic appeal, though they are not that easy to maintain or flush.
Pressure line toilets have more water pressure when flushed. The water is released under high pressure when flushed, cleaning out the toilets. These toilets are expensive and cost more than $250 per piece.
Flush Valve Operated Toilets do not have a separate tank to store water; instead, water is tapped directly from the water supply pipes. The flush valve regulates the flow of water, ensuring that too much water is not used during flushing. Apart from their high price, another factor working against these kinds of toilets is the need to work with differing water pressures in the supply line.