Why restrictions vary so much across SA
South Africa's water security is regional. Cape Town learned its lesson in 2017–18 (Day Zero) and now runs permanent baseline restrictions. The Vaal system (Joburg, Pretoria, parts of Free State) is chronically over-allocated and triggers restrictions whenever the dam sits below 60%. KZN has more reliable rainfall but local infrastructure failures create episodic restrictions.
Cape Town (City of Cape Town)
Level 1 is the permanent baseline: no hosepipe top-up between 09:00 and 18:00, pool covers strongly encouraged, swimming pools must be fitted with a water-saving device or covered when not in use.
Level 2+ (drought trigger): no municipal water for top-up at all, borehole/rainwater only.
Johannesburg & Tshwane (Joburg Water, Rand Water supply)
Standard rule: no hosepipe use 06:00–18:00. Pool top-up via hose allowed outside those hours when no restriction is active. Emergency restrictions (Level 2) suspend all pool top-up from municipal supply.
Durban (eThekwini Water Services)
Restrictions are episodic and tied to local infrastructure failures (Tongaat treatment plant, Hazelmere dam). When active, pool top-up from municipal supply is prohibited. Otherwise, no restrictions.
The compliant top-up stack
Every restriction allows non-municipal water sources. The defensible stack: (1) pool cover to cut evaporation 30%+, (2) rainwater harvesting tank as primary top-up, (3) borehole with treatment as backup. Detail in the spoke guides linked below.
Sources
- City of Cape Town water restrictions — City of Cape Town
- Department of Water and Sanitation — DWS
- Joburg Water restriction notices — Joburg Water