Shower door hinge mechanism

A shower door apparatus comprising:

• a shower door provided with a bottom seal element;
• and
• a hinge mechanism, said hinge mechanism comprising:
• an upper hinge mechanism and a lower hinge mechanism, said upper hinge mechanism comprising first and second co-operable hinge parts mountable to the shower door, and
• a manually-operable element engageable with at least one of said first and second hinge parts of said upper hinge mechanism such that operating said manually-operable element causes one of the first and second hinge parts of said upper hinge mechanism to be moved into a raised or lowered position relative to the other of the first and second hinge parts of said upper hinge mechanism, whereby, in use, operating said manually-operable element causes said shower door to be lifted or lowered,
• said lower hinge mechanism including a spring element so arranged as to bias the door apparatus in an upwards direction against the action of the upper hinge mechanism.