On a city-water hookup
A dock spigot puts unlimited, pressurized water one hose away from your cabin. It's the single risk DockNeighbor can put a hard physical cap on — which is why the water hardware gets its own use case instead of headlining every page.
What can go wrong
The slow, boring failures — not scare stories.
There is no tank to run dry
On board water, a failed line ends when the tank does. On city water it ends when someone notices — a burst hose or cracked fitting can run for days at full municipal pressure.
The hose itself is the weak point
The most common failure isn't inside the boat — it's the sun-baked hose and its fittings between the spigot and the inlet. Protection installed at the boat's inlet can't see it.
Pressure regulators don't stop volume
A regulator protects your plumbing from pressure spikes; it does nothing about a failed line flowing forever at normal pressure.
It fails while you're away
City water is exactly what you leave connected between visits — which means the failure window is precisely the time nobody is aboard.
How DockNeighbor covers it
Each risk maps to something that ships today, with the plan tier it needs called out honestly.
A hard limit on every open
The LinkTap valve goes at the source spigot, and every open command carries a volume or duration limit — a physical cap, enforced by the valve itself. A burst line ends with a bounded amount of water even if every other layer fails. The valve — and everything on this page — comes with any paid plan.
Flood sensors close it sooner
A Shelly Flood sensor at the low point (bilge, under the water heater) triggers the shutoff early: locally while the app is open, and via the cloud with the app closed — measured about 16 seconds from alarm to valve-close command. The flood alarms themselves reach every tier.
Flow metering shows the story
The valve's built-in meter shows real-time flow and usage. A slow leak shows up as water use when nobody's aboard — the early signal that something upstream of a flood sensor is wrong. Flow metering ships with the valve on any paid plan.
One plan covers the whole valve
Adding the valve, opening and closing it from anywhere, run programming, live flow, and the automatic shutoff are all part of the same paid plan — no per-feature nickel-and-diming.
The setup
Off-the-shelf hardware, bought once. The core app is free.
Recommended hardware
- LinkTap G2S valve — shutoff + flow meter, on the source spigot~$85–100
- LinkTap Gateway — bridges the valve to the boat's Wi-Fi~$60
- Shelly Flood Gen4 — one per low point~$30 each
- Pressure regulator — cheap insurance alongside, not instead~$10–40
This is the one use case where the valve kit is the star. If you're not hooked to city water, skip it entirely — every other DockNeighbor feature works without it.
Recommended plan
Weekender ($3/mo · $30/yr) — the valve is a paid-plan feature
Everything water on this page comes with Weekender: the valve, its open-limits, the shutoff that fires whether the app is open or not, and running it from anywhere. The alarms themselves — high water, flood — reach your phone on every plan, valve or not.
Every vehicle can try one month of Weekender free, started from the app's Account view.