11
The overflow connections of the coarse filter and those of the greywater and process water storage tanks are designed to be flat
pipe connections and must be connected with the drain. You must ensure that no greywater can flow into the process water
storage tank when connecting the overflow connections from the greywater and process water storage tanks with the drain.
Figure 4: Connection of the overflows ports
We recommend installing a separate ventilation line for the greywater buffer tank. The greywater buffer tank has
a 2” female tank screw available for this reason.
We recommend installing a siphon in the drain overflow to avoid any bad smells.
The drain connection or pump system must be able to securely drain the maximum drinking water feed volume
(see 3.3).
Make sure the overflow line to the sewer/pumping system has the same nominal width as the overflow connec-
tion (no cross-section constriction!).
The installation room is at risk of flooding if the overflow connection is not attached to the drain.
5.4.
Overflow of the tanks
