Water

DROP

drop_connect

Built inLocal push

The DROP integration provides connectivity with DROP smart water system devices via a local MQTT API.

In Apple Home through HomeKit Bridge

What HomeKit Bridge makes of each kind of entity this integration creates, read from its source code. A device only gets the ones that apply to it.

Entity	Shows up as	Note
`switch`	Switch or outlet
`binary_sensor`	Sensor (leak)
`sensor`	Sensor (temperature)
`select`	Mode picker (as switches)

What people report

DROP water devices work locally with the DROP Hub; DROP Alert support was added in 2024.

Works9

Device	In Home Assistant	What they said	Source
DROP Alert	Works Local	Support added in 2024.6 (merged PR) Saved copy Proposed change Add support for a new DROP product: DROP Alert ## Type of change <!-- What type of change does your PR introduce to Home Assistant? NOTE: Please, check only 1! box! If your PR requires multiple boxes to be checked, y Excerpt saved from GitHub on 2026-10-23.	PR #117867 · 2024-05
DROP Filter	Works Local	Listed as supported in the docs Saved copy Supported devices: DROP Hub: centralized system status and control.; Leak Detector: reports detected leaks around the home.; Softener: improves water quality by decreasing water hardness with integral water shutoff.; Filter: improves water quality by removing contaminants with integral water shutoff.; Protection Valve: automatic water shutoff with slow leak detection.; Pump Controller: smart replacement for an FSG pressure switch.; RO Filter: reverse osmosis drinking water filtration.; Salt Sensor: alerts when the salt level in the softener brine tank is low.; Alert: monitors both the water … Excerpt saved from home-assistant.io on 2026-10-23.	Docs
DROP Hub	Works Local	Central system status and control Saved copy Supported devices: DROP Hub: centralized system status and control.; Leak Detector: reports detected leaks around the home.; Softener: improves water quality by decreasing water hardness with integral water shutoff.; Filter: improves water quality by removing contaminants with integral water shutoff.; Protection Valve: automatic water shutoff with slow leak detection.; Pump Controller: smart replacement for an FSG pressure switch.; RO Filter: reverse osmosis drinking water filtration.; Salt Sensor: alerts when the salt level in the softener brine tank is low.; Alert: monitors both the water … Excerpt saved from home-assistant.io on 2026-10-23.	Docs
DROP Leak Detector	Works Local	Listed as supported in the docs Saved copy Supported devices: DROP Hub: centralized system status and control.; Leak Detector: reports detected leaks around the home.; Softener: improves water quality by decreasing water hardness with integral water shutoff.; Filter: improves water quality by removing contaminants with integral water shutoff.; Protection Valve: automatic water shutoff with slow leak detection.; Pump Controller: smart replacement for an FSG pressure switch.; RO Filter: reverse osmosis drinking water filtration.; Salt Sensor: alerts when the salt level in the softener brine tank is low.; Alert: monitors both the water … Excerpt saved from home-assistant.io on 2026-10-23.	Docs
DROP Protection Valve	Works Local	Listed as supported in the docs Saved copy Supported devices: DROP Hub: centralized system status and control.; Leak Detector: reports detected leaks around the home.; Softener: improves water quality by decreasing water hardness with integral water shutoff.; Filter: improves water quality by removing contaminants with integral water shutoff.; Protection Valve: automatic water shutoff with slow leak detection.; Pump Controller: smart replacement for an FSG pressure switch.; RO Filter: reverse osmosis drinking water filtration.; Salt Sensor: alerts when the salt level in the softener brine tank is low.; Alert: monitors both the water … Excerpt saved from home-assistant.io on 2026-10-23.	Docs
DROP Pump Controller	Works Local	Listed as supported in the docs Saved copy Supported devices: DROP Hub: centralized system status and control.; Leak Detector: reports detected leaks around the home.; Softener: improves water quality by decreasing water hardness with integral water shutoff.; Filter: improves water quality by removing contaminants with integral water shutoff.; Protection Valve: automatic water shutoff with slow leak detection.; Pump Controller: smart replacement for an FSG pressure switch.; RO Filter: reverse osmosis drinking water filtration.; Salt Sensor: alerts when the salt level in the softener brine tank is low.; Alert: monitors both the water … Excerpt saved from home-assistant.io on 2026-10-23.	Docs
DROP RO Filter	Works Local	Listed as supported in the docs Saved copy Supported devices: DROP Hub: centralized system status and control.; Leak Detector: reports detected leaks around the home.; Softener: improves water quality by decreasing water hardness with integral water shutoff.; Filter: improves water quality by removing contaminants with integral water shutoff.; Protection Valve: automatic water shutoff with slow leak detection.; Pump Controller: smart replacement for an FSG pressure switch.; RO Filter: reverse osmosis drinking water filtration.; Salt Sensor: alerts when the salt level in the softener brine tank is low.; Alert: monitors both the water … Excerpt saved from home-assistant.io on 2026-10-23.	Docs
DROP Salt Sensor	Works Local	Listed as supported in the docs Saved copy Supported devices: DROP Hub: centralized system status and control.; Leak Detector: reports detected leaks around the home.; Softener: improves water quality by decreasing water hardness with integral water shutoff.; Filter: improves water quality by removing contaminants with integral water shutoff.; Protection Valve: automatic water shutoff with slow leak detection.; Pump Controller: smart replacement for an FSG pressure switch.; RO Filter: reverse osmosis drinking water filtration.; Salt Sensor: alerts when the salt level in the softener brine tank is low.; Alert: monitors both the water … Excerpt saved from home-assistant.io on 2026-10-23.	Docs
DROP Softener	Works Local	Listed as supported in the docs Saved copy Supported devices: DROP Hub: centralized system status and control.; Leak Detector: reports detected leaks around the home.; Softener: improves water quality by decreasing water hardness with integral water shutoff.; Filter: improves water quality by removing contaminants with integral water shutoff.; Protection Valve: automatic water shutoff with slow leak detection.; Pump Controller: smart replacement for an FSG pressure switch.; RO Filter: reverse osmosis drinking water filtration.; Salt Sensor: alerts when the salt level in the softener brine tank is low.; Alert: monitors both the water … Excerpt saved from home-assistant.io on 2026-10-23.	Docs

Gathered from GitHub issues, pull requests, discussions and docs, and from r/homeassistant. These are individual reports, so check the linked thread and the date before you buy.

How it connects

Local push

Talks to the device on your network, and the device tells Home Assistant the moment something changes.

Found automatically over

MQTT

Details

Installs (analytics)	31
Added in	Home Assistant 2024.1
Set up in the UI	Yes
Maintainers	@ChandlerSystems, @pfrazer

Devices listed in its documentation

DROP Hub: centralized system status and control.
Leak Detector: reports detected leaks around the home.
Softener: improves water quality by decreasing water hardness with integral water shutoff.
Filter: improves water quality by removing contaminants with integral water shutoff.
Protection Valve: automatic water shutoff with slow leak detection.
Pump Controller: smart replacement for an FSG pressure switch.
RO Filter: reverse osmosis drinking water filtration.
Salt Sensor: alerts when the salt level in the softener brine tank is low.
Alert: monitors both the water level in a sump pit and electrical power to the sump pump.

In ReReHome

Whatever HomeKit Bridge shares reaches Apple Home as normal HomeKit accessories behind your Home Assistant bridge, so ReReHome shows and controls them like any other.

Bridges get their own settings page listing the accessories behind them.