24 Hours Before a Rand Water Shutdown: A Home Checklist

A Rand Water shutdown notice lands in your inbox or on the municipal website, and suddenly 24 hours feels very short. Most of the stress comes not from the shutdown itself but from not having a clear sequence to follow. This checklist gives you that sequence — room by room, in plain order of priority.

Before you start, one useful piece of context: Johannesburg’s reservoir system holds roughly 27 hours of citywide storage buffer under normal demand. That figure assumes demand stays normal, which it rarely does the moment a shutdown is announced. Plan as though pressure could drop sooner than the official end time, not later. You can read more about why these interruptions happen in our breakdown of Rand Water shutdowns explained.

Step one: Know exactly what time supply is expected to resume

Get this from the official Rand Water website or your municipality’s outage portal — not a WhatsApp group. Write the expected restoration time somewhere visible. Add four hours to it as your personal worst-case assumption. Shutdowns regularly overrun, and planning for the official end time is how people run out of water by mid-morning.

Also confirm the scope: is it your street, your suburb, or a wider zone? A bigger zone often means longer restoration because network repressurisation has to happen in sequence.

Kitchen: fill everything with a flat base

This is your drinking and cooking reserve, so treat it as the highest priority.

• Fill your largest stockpots and any food-safe containers you own.
• Fill the kettle and leave it full.
• Run the dishwasher now if it has a cycle outstanding — once pressure drops, you won’t be able to.
• If you have a water filter jug, fill it and let it filter through before pressure drops, then top it up again.

As a rough guide, plan for at least three litres of drinking water per person per day, plus another three to four litres for cooking and rinsing. South Africans use on average about 237 litres per person per day across all uses — your stored supply will cover essentials only, not normal usage.

Bathrooms: flush reserve and personal hygiene

Fill the bathtub. A standard bathtub holds roughly 150–200 litres and is your primary flushing reserve. Label it clearly if there are children in the house who might drain it for other purposes.

• Fill a bucket next to each toilet for manual flushing (pour directly into the bowl, not the cistern, for a faster flush with less water).
• Fill a large basin or second bucket for hand-washing and face-washing.
• Shower now if the shutdown is overnight — it is far easier than a bucket wash the next morning.
• Stock a spray bottle with clean water and a small bottle of no-rinse hand cleanser as a fallback.

Geyser: this step is non-negotiable

This is the single most-overlooked item on most people’s informal checklists, and skipping it can cost you a geyser element or the whole unit.

When municipal pressure drops, your geyser tank can lose its water level while the element stays energised. Running an element dry burns it out, sometimes catastrophically. Before the shutdown:

1. Switch your geyser to the manual or holiday setting via the geyser controller if you have one, or switch it off at the dedicated circuit breaker on your DB board.
2. Do not switch it back on until you have confirmed supply has returned and taps are flowing steadily — not just dripping.
3. If you have a solar geyser with an electric backup element, the same rule applies to the electric element circuit.

If you are unsure which breaker controls the geyser, label your DB board now rather than during the outage.

Laundry room and outside

• Run a washing machine cycle before the shutdown if one is due — wet laundry left sitting is a manageable inconvenience; running a cycle with no water mid-programme can stress the pump.
• Fill a large outdoor bin or water butt if you have one. This water is suitable for garden use, toilet flushing, and cleaning, but not drinking unless treated.
• If you have a pool, note that it is not a practical drinking or cooking reserve but can supplement flushing in an extended outage.
• Turn off any automatic irrigation timers. They will run dry and cycle pointlessly.

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If you already have a backup system: activate and check it now

A backup tank-and-pump system only helps if it is full and functional before pressure drops. The evening before the shutdown:

• Check the water level in your storage tanks. If they are not full, top them up now while mains pressure is still good.
• Test that the pump switches on and delivers pressure to your taps.
• If your system has an automated float valve that fills from the mains, confirm it is open and working.
• Check that the isolator between your backup system and the main supply is set correctly for your intended operating mode.

If you do not yet have a backup system but are seriously considering one, our backup water systems guide covers the main options — from tank-and-pump setups (typically R20,000–R40,000 for a basic system, around R55,000 for a whole-house setup) through to full borehole installations (typically R60,000–R100,000 for most Johannesburg properties, though full system costs range R40,000–R150,000 depending on depth and specification). Confirm any figures with actual quotes before budgeting.

The morning of: final checks before supply cuts

Set an alarm for one hour before the announced shutdown time.

Location	Final check
Kitchen	Containers full, filter jug full, kettle full
Bathrooms	Bathtub full, flushing buckets in place
DB board	Geyser circuit switched off
Laundry	Machine cycle done, timer off
Outside	Irrigation timer off, outdoor storage filled
Backup system	Tank full, pump tested

Once the shutdown is confirmed, do not leave taps in the slightly-open position hoping to catch a trickle. A slow drip that stops halfway through the night will leave taps open, and when pressure returns suddenly — sometimes at higher-than-normal pressure during repressurisation — it can cause spillage or water hammer in older plumbing.

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When supply returns

Wait for pressure to stabilise — typically 20 to 30 minutes after taps begin flowing again — before switching your geyser back on. Run a cold tap for a minute or two to flush any sediment disturbed during repressurisation before using water for drinking or cooking. If you notice discolouration that does not clear after a few minutes, stop using that water for consumption and contact Johannesburg Water. South African drinking water quality is governed by SANS 241 (2024 edition), and your water provider is obliged to deliver water that meets that standard.