THE SHORT ANSWER
A stream that will not stop needs a different response
If the shower keeps delivering a stream after its normal stop request, treat it as failed shut-off rather than a few after-use drips. Some exact models briefly purge water during normal shutdown; there is no universal waiting time. Keep clear if water is spreading, unexpectedly hot or near electrics, and arrange urgent help. A known private inside stop tap can limit incoming mains water under the conditions below, but stored supplies may continue and water isolation does not make an electric shower safe.
Jump to a section
Is running water creating a hazard?
| What is happening | Why it matters | Next step |
|---|---|---|
| Water spreading beyond the tray/bath, pooling or coming through another surface | Containment may be failing. | Keep clear and call for urgent plumbing/landlord help. Use the known private mains action only if all its dry-access conditions apply. |
| Water from electric casing/backplate or near electrical equipment | Different from an outlet stream; electrical assessment is needed. | Keep clear, stop using it and obtain urgent suitable help. Do not touch wet switches/equipment or open the unit. |
| Unexpectedly hot running water | Do not enter the spray to inspect or alter parts. | Keep people away and get prompt competent help; do not test the temperature by hand. |
| Flow remains in the normal tray/bath catchment but will not stop | A continuing supply/control fault still needs attention. | Use the bounded incoming-water action if applicable and contact maker/installer/plumber promptly. Do not leave it as a normal drain-down assumption. |
Sources
- WaterSafe Register - What should I do if a water pipe bursts?
- Thames Water Utilities Limited - Find and use your inside stop valve
- Electrical Safety First - Electrical safety after a flood
- Drinking Water Inspectorate - Water storage tanks and cisterns
- Association of Plumbing & Heating Contractors (APHC) - Dealing with plumbing and heating emergencies
- Triton Showers - Why is my electric shower leaking from the bottom?
- Triton Showers - My electric shower will not turn off the water - what should I do?
- Mira Showers - Mira Vista Heatloop installation and user guide - 1608931-W2-B
- WaterSafe Register - What can I do to reduce the risk of burns and scalding?
Continuous flow, normal purge or a few drips?
Use what happened when you already made the ordinary stop request. On the specified Mira Vista Heatloop, water briefly purges during normal shutdown. Other models have different sequences, so check the exact user guide if it is already safely available. A stream that does not settle as the guide describes needs help. Do not restart, repeatedly press controls or wait for a timer if water is escaping or safety is uncertain.
Only occasional drops after use?
The existing off-state drip guide covers retained water and persistent dripping after flow has otherwise stopped. This page covers an outlet continuing to deliver water or a stop control failing; the urgent damage-limitation decision comes first.
Sources
- Thames Water Utilities Limited - Find and use your inside stop valve
- Electrical Safety First - Electrical safety after a flood
- Mira Showers - Why my deluge shower head keeps dripping after use
- Mira Showers - How to fix a dripping showerhead
- Triton Showers - Why is my electric shower leaking from the bottom?
- Triton Showers - My electric shower will not turn off the water - what should I do?
- Mira Showers - Mira Vista Heatloop installation and user guide - 1608931-W2-B
- Mira Showers - Product resources and user guides
The supply and control arrangement matters
A mixer blends separate hot and cold supplies. An electric shower heats a cold feed inside its unit. A pumped power shower is not automatically the same supply arrangement as an electric shower, and digital systems may control equipment elsewhere. Use a manual, invoice or safely visible external model marking; do not open a cover, enter a loft or follow hidden pipes to identify it. If uncertain, say so to the installer or service team.
Sources
- Thames Water Utilities Limited - Find and use your inside stop valve
- Electrical Safety First - Electrical safety after a flood
- Drinking Water Inspectorate - Water storage tanks and cisterns
- Triton Showers - What are the different home water systems?
- Triton Showers - Why is my electric shower leaking from the bottom?
- Triton Showers - My electric shower will not turn off the water - what should I do?
- Mira Showers - Mira Vista Heatloop installation and user guide - 1608931-W2-B
When can a known private inside stop tap help?
This is damage limitation for incoming mains water, not shower repair. It can reduce a known incoming mains feed, including an identified mains-fed shower. Mixer, pumped or stored-water systems may keep delivering water already held in tanks/cylinders; an unfamiliar digital system must not be assumed mains-only. Closing this valve does not electrically isolate a shower. If the feed is uncertain or flow continues, get suitable help rather than searching for other valves.
Check the access conditions first
Only use a positively identified conventional private inside stop tap serving your home. Its valve and route must be dry and safely reachable by hand, away from water-affected electrics. Skip this action if it is shared, external, unidentified, stiff or inaccessible; call for help.
Close normally by hand
Turn that known valve clockwise until it closes normally. Do not force it or use tools for leverage. Do not operate tank, cylinder, pump, boiler, shower-unit or shared valves.
Observe from a safe place
From the same dry safe position, note whether the incoming stream reduces or stops. Water already in pipework or a stored supply can continue. Do not enter the spray, block the outlet or approach an electric unit to check it.
Leave repair and restart to the service route
If flow continues or the valve cannot be used safely, stop experimenting and obtain urgent plumbing/maker or landlord help as the situation requires. If it stops, leave the known valve closed pending assessment and tell the professional what you closed. Do not restart the suspect shower or treat stopped water as proof of electrical safety.
Sources
- WaterSafe Register - What should I do if a water pipe bursts?
- Thames Water Utilities Limited - Find and use your inside stop valve
- Electrical Safety First - Electrical safety after a flood
- Drinking Water Inspectorate - Water storage tanks and cisterns
- Association of Plumbing & Heating Contractors (APHC) - Dealing with plumbing and heating emergencies
- Triton Showers - What are the different home water systems?
- Triton Showers - Why is my electric shower leaking from the bottom?
- Triton Showers - My electric shower will not turn off the water - what should I do?
- Mira Showers - Mira Vista Heatloop installation and user guide - 1608931-W2-B
Why might normal shut-off fail?
A model-dependent shut-off valve, cartridge or solenoid can be involved. After a new electric installation, Triton’s advice also names installation checks rather than one universal failed part. Those checks concern the installer: do not twist a casing, refit controls, remove a cover or alter a commissioning link. A loose or ineffective handle and an unresponsive digital button need the exact maker’s assessment, not the same assumed cartridge repair.
Find the exact model’s support
Use the maker’s user guide and service team for the installed model. Keep installation/tradesperson procedures separate from normal operation; a linked manual is not a homeowner repair walkthrough.
Sources
- Electrical Safety First - Electrical safety after a flood
- Mira Showers - How to fix a dripping showerhead
- Triton Showers - Why is water constantly dripping from my shower head?
- Triton Showers - Why is my electric shower leaking from the bottom?
- Triton Showers - My electric shower will not turn off the water - what should I do?
- Mira Showers - Mira Vista Heatloop installation and user guide - 1608931-W2-B
- Mira Showers - Product resources and user guides
Make a useful service request
Report whether a stream still flows or has reduced to drops, where it appears, what the ordinary stop control already did, any visible light/message, the make/model if known and recent work. Tell the professional whether the known private mains valve was closed and whether that affected the stream. A casing/electrical-water problem needs suitable electrical/shower help as well as water control. For rented or managed accommodation, notify the landlord or operator; after installation, contact the installer and maker’s service route.
Ask about warranty, attendance and fault-finding before agreeing to parts. Confirm labour, parts, VAT, any return visit and who will restore the supply safely. There is no verified comparable all-in price here: mixer valve work, electric-unit service and digital control/valve work are different scopes. After repair, ask the professional to demonstrate the installed shower’s full normal shutdown and explain any expected brief purge or residual drainage. If the original continuing stream returns, stop use and contact them with the same record.
Sources
- Thames Water Utilities Limited - Find and use your inside stop valve
- Electrical Safety First - Electrical safety after a flood
- Mira Showers - Why my deluge shower head keeps dripping after use
- Mira Showers - How to fix a dripping showerhead
- Triton Showers - Why is water constantly dripping from my shower head?
- Triton Showers - Why is my electric shower leaking from the bottom?
- Triton Showers - My electric shower will not turn off the water - what should I do?
- Mira Showers - Mira Vista Heatloop installation and user guide - 1608931-W2-B
- Mira Showers - Product resources and user guides
Questions about a shower that will not turn off
Should I keep turning a stiff handle harder?
No. Do not force or dismantle the control. Tell the maker or installer what the normal stop attempt did and use safe damage limitation if applicable.
Will the mains stop tap stop every shower?
It limits incoming mains water, not every stored supply. A mixer or power system may continue from stored water. Use only the known private inside valve under its conditions; continued flow means help, not more valve experiments.
Does stopping water make an electric shower safe to open?
No. Water isolation is not electrical isolation. Do not open the casing or restart a suspect unit; obtain qualified help.
Is water continuing briefly after Stop always a fault?
Some identified showers purge water during shutdown. Follow the exact model’s normal sequence, not a generic delay; persistent flow or spreading water needs the safety/help route. Do not use a power-cycle reset as a test.
Sources
- WaterSafe Register - What should I do if a water pipe bursts?
- Thames Water Utilities Limited - Find and use your inside stop valve
- Electrical Safety First - Electrical safety after a flood
- Drinking Water Inspectorate - Water storage tanks and cisterns
- Association of Plumbing & Heating Contractors (APHC) - Dealing with plumbing and heating emergencies
- Triton Showers - What are the different home water systems?
- Mira Showers - Why my deluge shower head keeps dripping after use
- Mira Showers - How to fix a dripping showerhead
- Triton Showers - Why is water constantly dripping from my shower head?
- Triton Showers - Why is my electric shower leaking from the bottom?
- Triton Showers - My electric shower will not turn off the water - what should I do?
- Mira Showers - Mira Vista Heatloop installation and user guide - 1608931-W2-B
- Mira Showers - Product resources and user guides
EVIDENCE & ACCOUNTABILITY
Sources and review
Prepared by Plumber.org.uk with AI assistance, using the sources listed below. These sources support the explanations; they do not endorse this website.
Source and editorial checks completed. Professional plumbing review has not been carried out. Initial research: 2026-09-30. Updated: 2026-09-30. This is general information, not an assessment of your installation. Prices can change; confirm compatibility and the full repair quote before buying or booking.
How we research and update guides. Spotted an error? Contact us with the page address and the detail to check. This form is for general enquiries and editorial feedback, not emergency assistance.
- WaterSafe Register - What should I do if a water pipe bursts?
Current consumer guidance: locate and close the internal stopcock; switch off central heating/boiler for a burst; catch escaping water with towels or buckets; contact a WaterSafe-recognised plumber; if water has reached electrics, switch off electricity at the mains first. This guide adopts only safe, dry-position damage limitation and the bounded known-stop-tap action; it does not reproduce drainage or electrical isolation instructions.
- Thames Water Utilities Limited - Find and use your inside stop valve
Sections “Flats and shared water supply” and “How to use your inside stop valve”: shared valves may exist; a conventional valve closes clockwise; do not use excessive force; water may take a few minutes to stop running from taps; contact a plumber if finding/using the valve is a problem.
- Electrical Safety First - Electrical safety after a flood
Previously checked 28 Sep 2026: keep clear of exposed wiring and water-damaged electrical equipment; have affected equipment checked by an electrician.
- Drinking Water Inspectorate - Water storage tanks and cisterns
Previously checked 28 Sep 2026. “Do I have a water storage tank?”: some older properties have tank-fed cold taps, while newer homes, especially with unvented systems, are likely to have direct mains-fed hot and cold taps. Reused to qualify that household supplies vary.
- Association of Plumbing & Heating Contractors (APHC) - Dealing with plumbing and heating emergencies
Previously checked 28 Sep 2026. PDF pages 1 - 2 distinguish appliance isolation valves from main isolation and discuss separate hot-water-cylinder supply. Reused only to avoid implying that one mains stop tap isolates every system.
- Triton Showers - What are the different home water systems?
Accessed 2026-09-29; sections on mixer and electric showers describe mixer hot/cold supplies and electric showers heating a cold mains feed in the unit.
- Mira Showers - Why my deluge shower head keeps dripping after use
Checked 30 September 2026; Drain Down explanation: retained water in overhead/rain/deluge heads can release after use, including minutes or hours later.
- Mira Showers - How to fix a dripping showerhead
Checked 30 September 2026; “Why is my showerhead leaking while off?” distinguishes a valve/cartridge failing to close from head leakage and recommends professional assessment for a persistent off-state leak.
- Triton Showers - Why is water constantly dripping from my shower head?
Checked 30 September 2026; answer identifies continuous off-state dripping with a flow-control or solenoid-valve fault depending on model, and says these parts are non-serviceable.
- Triton Showers - Why is my electric shower leaking from the bottom?
Checked 30 September 2026; casing/backplate/electrical-area leakage: do not use and obtain qualified inspection. PRD outlet release is a separate fault; no further use until repaired. Independently reopened30September2026: small clear tube/plastic elbow at the unit base identifies PRD discharge; do not use again until the PRD is replaced. Casing/backplate leakage is a distinct no-use inspection route.
- Triton Showers - My electric shower will not turn off the water - what should I do?
Checked 30 September 2026; answer names cover/backplate fit and commissioning-link removal for relevant newly installed models. These installation checks are referred to the installer, never copied as homeowner steps.
- Mira Showers - Mira Vista Heatloop installation and user guide - 1608931-W2-B
Checked 30 September 2026; printed page 36 (PDF index 35), normal Start/Stop shutdown purges water for a few seconds; says not to interrupt power before purge completes. Printed pages 40 - 42 exclude user service beneath cover and identify flow-valve/hardware faults for maker help.
- Mira Showers - Product resources and user guides
Checked 30 September 2026; maker library selects product category/name/code to locate installation/user instructions.
- WaterSafe Register - What can I do to reduce the risk of burns and scalding?
Accessed 2026-09-29; page states that TMVs mix hot and cold water and some will shut down flow if either supply fails.