Many households have cited severe reductions in water pressure, with some properties receiving little or no water during parts of the day.
Spiteri said residents understood that unexpected failures could occur, but that access to a reliable water supply was an “essential service”.
“What is unacceptable is the prolonged lack of communication and transparency from South East Water throughout this incident,” she said.
“Families have been left dealing with low water pressure, interrupted supplies and considerable uncertainty for weeks, with little explanation about what is happening or when the situation will be resolved.”
She said residents deserved transparency, accountability and regular updates.
“South East Water must now provide a full explanation of what has gone wrong, what is being done to put it right, and how affected households will be compensated for the considerable inconvenience they have experienced,” she added.
Rathbone said: “The principal concern repeatedly raised by residents has been the absence of clear, timely information.
“People can be understanding when problems arise, but they expect honest communication and regular updates.”
The parish council and Spiteri are also seeking clarification regarding the pumping station in Mill Lane and whether its operation or capacity has played any role in the current situation.