An untreated system can exhibit a variety of symptoms such as radiator failure, boiler failure, loss of efficiency, boiler noise etc.
Any of the problems described can be attributed to a lack of initial cleansing and failure to add inhibitor when the system was new.
Ensure that the system has been properly cleaned and adequately treated by using the Sentinel System Check postal service.
Sentinel System Check provides a full diagnosis of the condition of the system water and provides the best solution for determining how the heating system can be returned to full efficiency.
* indicates mandatory information
Sentinel is recommended by manufacturers including :