diff --git a/Scenes/sink.tscn b/Scenes/sink.tscn
index 28c867d..9dc7e48 100644
--- a/Scenes/sink.tscn
+++ b/Scenes/sink.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=5 format=3 uid="uid://whu4rwgsyl8u"]
+[gd_scene load_steps=6 format=3 uid="uid://whu4rwgsyl8u"]
 
 [ext_resource type="Texture2D" uid="uid://cgnmmfc1l4d5d" path="res://2D Assets/sinks/sink.png" id="1_0ywo5"]
 [ext_resource type="Script" path="res://Scripts/SinkClick.gd" id="2_16xt0"]
@@ -7,6 +7,13 @@
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_7l3ci"]
 size = Vector2(443.333, 408.333)
 
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_circle"]
+bg_color = Color(0, 1, 0, 1)
+corner_radius_top_left = 50
+corner_radius_top_right = 50
+corner_radius_bottom_right = 50
+corner_radius_bottom_left = 50
+
 [node name="Sink" type="Sprite2D"]
 position = Vector2(946.667, 863.333)
 texture = ExtResource("1_0ywo5")
@@ -20,4 +27,12 @@ script = ExtResource("2_16xt0")
 position = Vector2(0, -5.83331)
 shape = SubResource("RectangleShape2D_7l3ci")
 
-[connection signal="area_entered" from="Area2D" to="Area2D" method="_on_area_entered"]
+[node name="IndicatorLight" type="Panel" parent="."]
+offset_left = -25.0
+offset_top = -25.0
+offset_right = 25.0
+offset_bottom = 25.0
+mouse_filter = 2
+theme_override_styles/panel = SubResource("StyleBoxFlat_circle")
+
+[connection signal="area_entered" from="Area2D" to="Area2D" method="_on_area_entered"]
\ No newline at end of file
diff --git a/Scripts/sink.gd b/Scripts/sink.gd
index 4939319..1283476 100644
--- a/Scripts/sink.gd
+++ b/Scripts/sink.gd
@@ -2,12 +2,19 @@ extends Sprite2D
 
 @export var expectedType: String
 
+@export var available: bool = true:
+	set(value):
+		available = value
+		if indicator_light:
+			indicator_light.visible = value
 
-# Called when the node enters the scene tree for the first time.
-func _ready() -> void:
-	pass # Replace with function body.
+@onready var indicator_light: Control = $IndicatorLight
 
+func _ready() -> void:
+	if indicator_light:
+		indicator_light.visible = available
 
-# Called every frame. 'delta' is the elapsed time since the previous frame.
-func _process(delta: float) -> void:
-	pass
+func _process(_delta: float) -> void:
+	if available and indicator_light:
+		var time = Time.get_ticks_msec() / 200.0
+		indicator_light.modulate.a = 0.6 + (sin(time) * 0.4)
\ No newline at end of file