Continuing with the theme of connectivity issues, sometimes you may receive a message during Mainline Design that a valve (or mainline outlet) is not connected. This can occur even though Check Outlet Connectivity reported that all items were connected, when more than one water supply is in the design.
Reason 1: Although Outlet Connectivity checks if control valves are connected to a water supply it cannot tell if the valves are connected to the "correct" water supply. If valves or mainline outlets are supplied by the wrong water supply (as per Management) then the above message will occur during the mainline design process.
This shows that water supply 2 is supplying systems flows 1 and 2 but it is only connected to the valves running on system flow 2.
Scenario: There are two separate systems on a design and in practice all valves are running at the same time.
You cannot assign all zones and water supplies to one system flow (station). Both water supplies would then be assigned to System Flow 1, but Water Supply 2 and its zones must be on a different system flow (because WS 2 is not physically connected to the other zones on System Flow 1). Assign all zones on Water Supply 2 to System Flow 2. Then each system will operate autonomously.
More than one system flow per system:
If each system has multiple system flows ensure that different system flow numbers are used in each system. For example:-
system flows 1-10 on system 1 (water supply1 )
and
system flows 11-24 on system 2 (water supply 2), and so on.
Reason 2:
The same error will occur if there are multiple water supplies feeding the same system if one of the water supplies is not connected to the pipe. Make sure your mainline junctions are visible (turn on the layer) and check for junctions at the water supplies, or non-connections on the pipeline between the water supply(s) and the rest of the system.
Reason 1: Although Outlet Connectivity checks if control valves are connected to a water supply it cannot tell if the valves are connected to the "correct" water supply. If valves or mainline outlets are supplied by the wrong water supply (as per Management) then the above message will occur during the mainline design process.
This shows that water supply 2 is supplying systems flows 1 and 2 but it is only connected to the valves running on system flow 2.
Scenario: There are two separate systems on a design and in practice all valves are running at the same time.
You cannot assign all zones and water supplies to one system flow (station). Both water supplies would then be assigned to System Flow 1, but Water Supply 2 and its zones must be on a different system flow (because WS 2 is not physically connected to the other zones on System Flow 1). Assign all zones on Water Supply 2 to System Flow 2. Then each system will operate autonomously.
More than one system flow per system:
If each system has multiple system flows ensure that different system flow numbers are used in each system. For example:-
system flows 1-10 on system 1 (water supply1 )
and
system flows 11-24 on system 2 (water supply 2), and so on.
Reason 2:
The same error will occur if there are multiple water supplies feeding the same system if one of the water supplies is not connected to the pipe. Make sure your mainline junctions are visible (turn on the layer) and check for junctions at the water supplies, or non-connections on the pipeline between the water supply(s) and the rest of the system.