Johgee UK Guides
First Frost Alert: Remove and Drain a Water Timer
Act before the forecast frost, not on a fixed date
When freezing conditions are forecast, follow the timer manufacturer's winter instructions before the temperature falls. For many removable tap-mounted timers, the conservative action is to close the water, release pressure, remove the unit, drain it and store it frost-free.
Weather resistance is not the same as frost resistance. An enclosure rating describes specified exposure to water or dust; it does not establish that water trapped inside a valve can freeze without damage.
This is the short same-day reminder. For pipework, filters, pumps, water butts and a documented spring restart, use the complete irrigation winterising guide.
Check the exact instructions first
Find the current manual for the installed model and record the model or revision. Look for:
- permitted storage temperature;
- removal and draining method;
- whether valves should be opened during draining;
- battery-removal guidance;
- instructions for the gateway or indoor unit;
- warnings about compressed-air blowout or tools.
Do not substitute a different brand's routine. If instructions are unavailable, isolate the water and keep the vulnerable device frost-free until its safe procedure is confirmed.
Ten-minute shutdown
1. Save the current setup
Photograph the tap, adaptor order, support and labelled outlet lines. Save the active schedules or take screenshots for reference. This avoids guessing at recommissioning.
2. Close the water supply
Close the outside tap or relevant isolating valve fully. Use the timer's manual controls as instructed to release downstream pressure. Confirm water has stopped before loosening a collar.
3. Disconnect without stressing fittings
Support the timer body and attached hoses. Disconnect outlet lines, then remove the inlet collar by hand unless the manual specifies a tool. Retain washers and adaptors in a labelled container.
Do not leave four heavy hoses hanging from the tap or controller while removing it.
4. Drain the valve body
Orient the unit and operate valves exactly as the manual directs so trapped water can leave inlet, valve chambers and outlets. Gentle movement may help, but do not strike, heat or dismantle a sealed controller.
Visible dripping stopping is not proof that every internal cavity is empty. The manufacturer's procedure controls.
5. Inspect and dry
Look for cracked collars, flattened washers, corrosion, dirt around seals or an existing leak. Wipe the exterior and allow it to dry before storage. Record defects now rather than discovering them during spring watering.
6. Handle batteries correctly
Follow the device instructions. Where batteries are removed for storage, check the compartment for moisture or corrosion and store batteries separately. Do not invent a battery-life estimate from one season's indicator.
7. Store frost-free
Choose a dry location that remains within the published storage range. Keep the controller, adaptors, washers and record together. The indoor gateway can normally remain indoors, but confirm its instructions and avoid deleting account or pairing data unnecessarily.
Do not rely on a cover alone
An insulated tap cover may protect exposed plumbing as part of a suitable property-level plan. It is not evidence that a removable timer containing residual water can remain outside through prolonged freezing weather.
A cover has no heat source. It may slow temperature change, while the eventual temperature inside can still approach ambient conditions. When the manual instructs removal, follow it.
Leave the outdoor tap safe
After removing the controller, inspect the tap and any exposed pipe. Fit appropriate protection for the tap and follow the property's plumbing guidance. Know where the internal stop valve is and confirm it can be reached.
Do not leave an open adaptor that can collect debris. Do not alter household plumbing unless competent and authorised to do so.
Rented homes, allotments and shared taps
Do not remove, insulate or alter plumbing that belongs to a landlord, allotment association or shared garden without permission. Isolate only equipment you are authorised to control. Photograph the condition, notify the responsible person and agree who will protect the tap and store removable parts.
Where other users still need the supply, a shared shutdown cannot be assumed. Label your disconnected lines, keep walkways clear and record the agreed emergency contact. Ownership and access are part of a safe frost response, not an afterthought.
Protect exposed irrigation lines
Open flush points or end caps where the system instructions require drainage. Allow surface lines to empty to a safe place without creating a slippery path. Disconnect pumps and filters according to their own procedures.
Avoid an improvised high-pressure air blowout. Components have pressure limits, and trapped debris can become hazardous. Use only a documented method suitable for the installed system.
If frost is already occurring
Do not force a frozen collar or valve. Close the supply, prevent use and allow components to thaw naturally in a safe environment. Do not apply an open flame or uncontrolled heat.
After thawing, inspect for cracks and leaks before returning the system to service. A component that appears normal can still leak under pressure.
Spring reminder
Create a dated task to:
- inspect the stored unit and washers;
- reinstall according to the manual;
- open the supply slowly;
- perform a dry-tissue leak check;
- exercise every valve manually;
- observe one automatic start and close;
- flush lines before reconnecting fine emitters.
Do not simply restore an old schedule. Plant groups, delivery hardware and weather may have changed.
Johgee-specific boundary
Johgee's current product page describes outdoor use and the controller's published operating limits. It does not justify leaving residual water inside during frost. Use the manual supplied with the actual revision for removal, draining, batteries and storage.
Field evidence from our garden
