It is a well-known fact that to guarantee optimal stability in traditional, spagless and high-pressure casting processes for sanitaryware production it is important to maintain the slip temperature at between 35°C and 38°C. However, this temperature must be reached over a clearly determined period of time during and after filling of the individual tanks (normally 24 h but sometimes 12 h) and maintained at these values for the entire storage period before the slip is transferred to the casting hall.

This setting must be made independently of the temperature of the incoming slip arriving from the body preparation room, the ambient temperature of the area where the tanks are located, and the exterior environmental conditions in summer and especially winter. Other equally important measures include performing the least invasive possible operations on the existing tanks, for example by using hot water already present in the factory.