diff --git a/coordinator/session/pocket.lua b/coordinator/session/pocket.lua
index f471f0b..2fbcd5f 100644
--- a/coordinator/session/pocket.lua
+++ b/coordinator/session/pocket.lua
@@ -364,7 +364,7 @@ function pocket.new_session(id, s_addr, i_seq_num, in_queue, out_queue, timeout)
                 -- facility data
                 data[#db.units + 1] = {}
 
-                _send(CRDN_TYPE.API_GET_PROC, data)
+                _send(CRDN_TYPE.API_GET_WASTE, data)
             else
                 log.debug(log_tag .. "handler received unsupported CRDN packet type " .. pkt.type)
             end
diff --git a/pocket/process.lua b/pocket/process.lua
index d0a3241..7b1f973 100644
--- a/pocket/process.lua
+++ b/pocket/process.lua
@@ -85,6 +85,14 @@ function process.set_group(unit_id, group_id)
     log.debug(util.c("PROCESS: UNIT[", unit_id, "] SET GROUP ", group_id))
 end
 
+-- set waste mode
+---@param id integer unit ID
+---@param mode integer waste mode
+function process.set_unit_waste(id, mode)
+    self.comms.send_unit_command(U_CMD.SET_WASTE, id, mode)
+    log.debug(util.c("PROCESS: UNIT[", id, "] SET WASTE ", mode))
+end
+
 -- acknowledge all alarms
 ---@param id integer unit ID
 function process.ack_all_alarms(id)
diff --git a/pocket/ui/apps/waste.lua b/pocket/ui/apps/waste.lua
index 20196c0..9557e2b 100644
--- a/pocket/ui/apps/waste.lua
+++ b/pocket/ui/apps/waste.lua
@@ -109,11 +109,13 @@ local function new_view(root)
 
             TextBox{parent=u_div,y=1,text="Reactor Unit #"..i,alignment=ALIGN.CENTER}
 
+            local function set_waste(mode) process.set_unit_waste(i, mode) end
+
             local waste_prod = StateIndicator{parent=u_div,x=16,y=3,states=style.waste.states_abbrv,value=1,min_width=6}
-            local waste_mode = RadioButton{parent=u_div,y=3,options=style.waste.unit_opts,callback=function()end,radio_colors=cpair(colors.lightGray,colors.gray),select_color=colors.white}
+            local waste_mode = RadioButton{parent=u_div,y=3,options=style.waste.unit_opts,callback=set_waste,radio_colors=cpair(colors.lightGray,colors.gray),select_color=colors.white}
 
             waste_prod.register(u_ps, "U_WasteProduct", waste_prod.update)
-            waste_mode.register(u_ps, "U_WasteMode", waste_mode.update)
+            waste_mode.register(u_ps, "U_WasteMode", waste_mode.set_value)
 
             TextBox{parent=u_div,y=8,text="Plutonium (Pellets)",fg_bg=style.label}
             local pu = DataIndicator{parent=u_div,label="",format="%16.3f",value=0,unit="mB/t",lu_colors=lu_col,width=21,fg_bg=text_fg}