diff --git a/include/core/Layer.hpp b/include/core/Layer.hpp
index 125c0079b5..1a479906e2 100644
--- a/include/core/Layer.hpp
+++ b/include/core/Layer.hpp
@@ -117,8 +117,8 @@ namespace ngen
                     //If there is more than one, some form of catchment partitioning will be required.
                     //for now, only contribute to the first one in the list
                     nexus->add_upstream_flow(response_m_h, id, output_time_index);
-                    std::cerr << "Add water to nexus ID = " << nexus->get_id() << " from catchment ID = " << id << " value = "
-                              << response << ", ID = " << id << ", time-index = " << output_time_index << std::endl; 
+                    /*std::cerr << "Add water to nexus ID = " << nexus->get_id() << " from catchment ID = " << id << " value = "
+                              << response << ", ID = " << id << ", time-index = " << output_time_index << std::endl; */
                     break;
                 }
                 
diff --git a/src/core/SurfaceLayer.cpp b/src/core/SurfaceLayer.cpp
index acfe697cd7..3eec688fa8 100644
--- a/src/core/SurfaceLayer.cpp
+++ b/src/core/SurfaceLayer.cpp
@@ -34,7 +34,7 @@ void ngen::SurfaceLayer::update_models()
             cat_id = "terminal";
         }
 
-        std::cerr << "Requesting water from nexus, id = " << id << " at time = " <<current_time_index << ",  percent = 100, destination = " << cat_id << std::endl;
+        //std::cerr << "Requesting water from nexus, id = " << id << " at time = " <<current_time_index << ",  percent = 100, destination = " << cat_id << std::endl;
         double contribution_at_t = features.nexus_at(id)->get_downstream_flow(cat_id, current_time_index, 100.0);
         
         if(nexus_outfiles[id].is_open()) {