diff --git a/homeassistant/components/tuya/const.py b/homeassistant/components/tuya/const.py
index a546495cc1a..508c47443ca 100644
--- a/homeassistant/components/tuya/const.py
+++ b/homeassistant/components/tuya/const.py
@@ -199,7 +199,8 @@ class DPCode(StrEnum):
     FEED_REPORT = "feed_report"
     FEED_STATE = "feed_state"
     FILTER = "filter"
-    FILTER_LIFE = "filter"
+    FILTER_DURATION = "filter_life"  # Filter duration (hours)
+    FILTER_LIFE = "filter"  # Filter life (percentage)
     FILTER_RESET = "filter_reset"  # Filter (cartridge) reset
     FLOODLIGHT_LIGHTNESS = "floodlight_lightness"
     FLOODLIGHT_SWITCH = "floodlight_switch"
@@ -267,6 +268,7 @@ class DPCode(StrEnum):
     PRESSURE_VALUE = "pressure_value"
     PUMP = "pump"
     PUMP_RESET = "pump_reset"  # Water pump reset
+    PUMP_TIME = "pump_time"  # Water pump duration
     OXYGEN = "oxygen"  # Oxygen bar
     RECORD_MODE = "record_mode"
     RECORD_SWITCH = "record_switch"  # Recording switch
@@ -374,6 +376,7 @@ class DPCode(StrEnum):
     UPPER_TEMP = "upper_temp"
     UPPER_TEMP_F = "upper_temp_f"
     UV = "uv"  # UV sterilization
+    UV_RUNTIME = "uv_runtime"  # UV runtime
     VA_BATTERY = "va_battery"
     VA_HUMIDITY = "va_humidity"
     VA_TEMPERATURE = "va_temperature"
@@ -387,6 +390,7 @@ class DPCode(StrEnum):
     WATER = "water"
     WATER_RESET = "water_reset"  # Resetting of water usage days
     WATER_SET = "water_set"  # Water level
+    WATER_TIME = "water_time"  # Water usage duration
     WATERSENSOR_STATE = "watersensor_state"
     WEATHER_DELAY = "weather_delay"
     WET = "wet"  # Humidification
diff --git a/homeassistant/components/tuya/sensor.py b/homeassistant/components/tuya/sensor.py
index d9be940bddd..912632c074b 100644
--- a/homeassistant/components/tuya/sensor.py
+++ b/homeassistant/components/tuya/sensor.py
@@ -305,6 +305,36 @@ SENSORS: dict[str, tuple[TuyaSensorEntityDescription, ...]] = {
             state_class=SensorStateClass.MEASUREMENT,
         ),
     ),
+    # Pet Fountain
+    # https://developer.tuya.com/en/docs/iot/s?id=K9gf48r0as4ln
+    "cwysj": (
+        TuyaSensorEntityDescription(
+            key=DPCode.UV_RUNTIME,
+            translation_key="uv_runtime",
+            device_class=SensorDeviceClass.DURATION,
+            state_class=SensorStateClass.MEASUREMENT,
+            entity_registry_enabled_default=False,
+        ),
+        TuyaSensorEntityDescription(
+            key=DPCode.PUMP_TIME,
+            translation_key="pump_time",
+            device_class=SensorDeviceClass.DURATION,
+            state_class=SensorStateClass.MEASUREMENT,
+        ),
+        TuyaSensorEntityDescription(
+            key=DPCode.FILTER_DURATION,
+            translation_key="filter_duration",
+            device_class=SensorDeviceClass.DURATION,
+            state_class=SensorStateClass.MEASUREMENT,
+        ),
+        TuyaSensorEntityDescription(
+            key=DPCode.WATER_TIME,
+            translation_key="water_time",
+            device_class=SensorDeviceClass.DURATION,
+            state_class=SensorStateClass.MEASUREMENT,
+            entity_registry_enabled_default=False,
+        ),
+    ),
     # Air Quality Monitor
     # https://developer.tuya.com/en/docs/iot/hjjcy?id=Kbeoad8y1nnlv
     "hjjcy": (
diff --git a/homeassistant/components/tuya/strings.json b/homeassistant/components/tuya/strings.json
index a3b997959f6..ff67ac19806 100644
--- a/homeassistant/components/tuya/strings.json
+++ b/homeassistant/components/tuya/strings.json
@@ -668,6 +668,18 @@
           "level_5": "Level 5",
           "level_6": "Level 6"
         }
+      },
+      "uv_runtime": {
+        "name": "UV runtime"
+      },
+      "pump_time": {
+        "name": "Water pump duration"
+      },
+      "filter_duration": {
+        "name": "Filter duration"
+      },
+      "water_time": {
+        "name": "Water usage duration"
       }
     },
     "switch": {
diff --git a/homeassistant/components/tuya/switch.py b/homeassistant/components/tuya/switch.py
index b0936dcaade..a1d90c6ec2b 100644
--- a/homeassistant/components/tuya/switch.py
+++ b/homeassistant/components/tuya/switch.py
@@ -80,7 +80,7 @@ SWITCHES: dict[str, tuple[SwitchEntityDescription, ...]] = {
             entity_category=EntityCategory.CONFIG,
         ),
     ),
-    # Pet Water Feeder
+    # Pet Fountain
     # https://developer.tuya.com/en/docs/iot/f?id=K9gf46aewxem5
     "cwysj": (
         SwitchEntityDescription(