Wall-hung flush toilet

A wall-hung flush toilet fixed to a wall, the wall-hung flush toilet comprising:

• a toilet main body including
• a bowl configured to receive human waste, and
• a drain trap having an inlet connected to a lower part of the bowl, the drain trap being configured to discharge human waste;
• a tank device including a water storage tank configured to store flush water to be supplied to the toilet main body;
• a pump device configured to supply, to the toilet main body, the flush water stored in the water storage tank;
• and
• a connection pipe connecting the water storage tank and the pump device, wherein
• the toilet main body further includes a storage part located below the bowl,
• the storage part is configured to store the water storage tank,
• the drain trap includes a drain trap pipe line including:
• a lowermost end part located behind and below the inlet;
• a descending pipe line descending from the inlet to the lowermost end part;
• a top part located behind and above the lowermost end part at a downstream side of the descending pipe line;
• and
• an ascending pipe line ascending from the lowermost end part to the top part at the downstream side of the descending pipe line,
• when viewed in bottom-view, the water storage tank is arranged in the storage part to straddle the lowermost end part of the drain trap pipe line in a lateral direction, and
• when viewed in bottom-view, at least a part of the connection pipe and at least a part of the pump device are located inside a region of the drain trap.