Zoeller 2701 Manual De Instrucciones página 8

10. Install a 1-1/4 in. check valve (not included) above the
union to prevent back-flow.
11. Install a 1-1/4 in. gate valve or ball valve (not included)
above the check valve as required by local, regional, or
state codes.
12. Connect remaining discharge pipe into main waste
line.
10
11
12
8
Check
Valve
Gate
Valve
Main
waste line