diff --git a/api/s0_base.py b/api/s0_base.py
index 7a97cc1..f813d66 100644
--- a/api/s0_base.py
+++ b/api/s0_base.py
@@ -111,7 +111,7 @@ def get_nodes_id_and_type(name: str) -> dict[str, str]:
 def get_major_nodes(name: str) -> list[str]:
     major_nodes_set = set()
     with conn[name].cursor(row_factory=dict_row) as cur:
-        cur.execute(f"select node1, node2 from pipes where diameter > 100")
+        cur.execute(f"select node1, node2 from pipes where diameter > 0")
         for record in cur:
             major_nodes_set.add(record['node1'])
             major_nodes_set.add(record['node2'])
@@ -157,7 +157,7 @@ def get_links_id_and_type(name: str) -> dict[str, str]:
 def get_major_pipes(name: str) -> list[str]:
     major_pipe_ids: list[str] = []
     with conn[name].cursor(row_factory=dict_row) as cur:
-        cur.execute(f"select id from pipes where diameter > 100 order by id")
+        cur.execute(f"select id from pipes where diameter > 0 order by id")
         for record in cur:
             major_pipe_ids.append(record['id'])
     return major_pipe_ids