Vollrath U3-02 - Manual (Page 16)

10
3.7 CLEANING MIX LINES
The mix lines must be cleaned and sanitized whenever
changing mix or whenever the freezer is off for an extended
period of time - such as overnight, or nonbusiness days.
The mix lines are sufficiently cleaned and sanitized when
cleaning and sanitizing the pump and freezer as an
assembly.
Once every 2 weeks, if required, perform the following
steps:
A. Mix 2 gallons (7.5 liters) of milkstone remove solution
according to the directions on the container and pump
through the mix line.
B. Cut a piece of sponge slightly larger than the inside
diameter of the mix line. Place the sponge inside the
mix line and force through with tap water pressure. A
garden hose repair end clamped to the mix line works
well for this purpose.