Tap with blocking members to limit rotation of a tap handle

A water supply system comprising:

• at least one tap, said at least one tap including:
• a body arranged for connection to at least one water supply pipe;
• a valve including a first part, which is fixed to the body and a second part arranged for limited rotational movement with respect to the first part;
• and a handle fixed for rotation with the second part of the valve, said handle including a housing mounted over at least a part of the valve, said housing including first and second blocking members;
• and the body, and/or a part of the tap fixed to the body, includes third and fourth blocking members;
• wherein the first blocking member is arranged to engage with the third blocking member to limit rotational movement of the handle in a first rotational direction;
• the first blocking member is arranged to engage the fourth blocking member to limit rotational movement of the handle in the second rotational direction;
• the second blocking member is arranged to engage with one of the third and fourth blocking members to limit rotational movement of the handle in one of the first and second rotational directions;
• and wherein the first, second, third and fourth blocking members are located within the housing.