The Douglas councillor says a change in culture has prompted his resignation.
His resignation as chair also means he will no longer sit on the executive committee.
Mr Pitts has served the board for more than 10 years, so what has changed?
Councillor Andrew Bentley succeeds Mr Pitts as chair.
Possible disruption to bus services this evening
Bus Vannin's warning passengers of more possible disruption today.
Pier restoration project marks progress with Sunday celebration
A community project to restore a pier in the north is celebrating progress this Sunday!
MNH announce Hop Tu Naa celebrations
Manx National Heritage has announced its events to celebrate Hop Tu Naa.
Ramsey cannabis café heads to Douglas for one-night event
A cannabis café from Ramsey says it'll be coming to Douglas tonight.
Thousands of names to be read at Gaza remembrance vigil in Douglas
A vigil will be held today for more than 10,000 children killed during the Gaza conflict.
Water main works to begin along Glenfaba Road
Manx Utilities says it'll begin the next phase of a huge water mains replacement project next week.
Dunlop and McGuinness TT bikes up for auction
There's a chance to own motorbikes ridden by two of the TT's greatest stars.
Tree work on busy Douglas road today
A busy road in Douglas will be one-way today as work gets underway on trees.
