Thermo Scientific thermoscientific Vanquish UHPLC System Operating Manual page 77

Ensuring Proper Drainage of Waste
UHPLC System
Operating Manual
1. Position the waste container below the level of the system stack. To
prevent solvent vapors from evaporating back into the system, make
sure that the distance is sufficient.
2. Make sure the drain tubing is neither bent nor pinched.
3. To prevent liquid from flowing back into the system, the entire drain
tubing must remain below the drain port. Avoid the formation of
siphons.
TIP To allow the waste liquid flowing off properly and avoid liquid
accumulation in the system base, the end of the waste line must not be
submerged in waste liquid (see figure below):
• Shorten the tubing if required.
• Observe the liquid level in the waste container. Empty the waste
container as necessary.
Figure 32: Free end of waste line in waste container
5 • Installation
Page 77