Flush toilet

A flush toilet for discharging waste with flush water, the flush toilet comprising:

• a toilet main body including a bowl configured to receive waste, and a discharge trap configured to discharge the waste in the bowl;
• and
• a tank device configured to supply the flush water to the toilet main body, wherein
• the tank device includes a storage tank configured to store the flush water to be supplied to the toilet main body, the storage tank being provided behind the toilet main body and above a floor surface,
• the storage tank has a shape that is asymmetrical in a front-back or left-right direction and includes a large tank section and a small tank section, the large tank section being a large-capacity side of the storage tank that is divided into two at a center in the left-right direction when seen in the front-back direction, the small tank section being a small-capacity side of the storage tank that is divided into two at the center in the left-right direction when seen in the front-back direction, and
• the storage tank or the toilet main body includes a deformation-preventing supporting member configured to prevent deformation of the storage tank by supporting the storage tank that is installed on the toilet main body,
• wherein the tank device further includes a pump configured to feed, under pressure, the flush water in the storage tank to the toilet main body, the pump being provided as the deformation-preventing supporting member.