The City Council can’t guarantee to maintain a specific water pressure or flow rate. Sometimes the water pressure may drop or increase. The water flow could also be restricted altogether.

All alternative water installations like grey water, groundwater, rain water etc, and in particular those that are intended to be connected to the City Council’s water supply
network,  must be approved by the City of Cape Town.

Alternative water can be used to flush toilets amongst some other permitted uses. But you have to take certain measures in order not to contaminate the drinking water on your property coming from the  municipal water supply. An approved Backflow Preventor should be installed at the main water meter of the property.

According to The City of Cape Town’s By-Laws you have to install a water meter if you are using borehole or wellpoint water, to keep a record of the amount of water used.

Some new toilet cisterns use 6 liters of water per flush. Some of the older cisterns may use up to 9 liters. You can however adjust the water level in the cistern.


Before you sell your property, you have to get a City-registered plumber, like Willz Plumbing in Cape Town, to inspect certain plumbing installations on your property and issue a plumbing Certificate of Compliance (CoC) if it is compliant. The plumbing CoC must be given to your transferring attorney who will submit it to the City of Cape Town at the following email address: certificateofcompliance@capetown.gov.za.

The standard steel geysers have a 5 Year warranty on the cylinder. You can expect your geyser to last about 5 to 6 years, but it also depends on the water quality in your area. Should you get a plumber to service the geyser every 18 months you may increase the lifetime of the cylinder with quite a few years. Copper Geysers do have a longer lifespan and you can expect them to last about 20 to 25 years.

The sacrificial anode inside the geyser corrodes instead of the steel cylinder of the geyser because the anode is more easily oxidized. The more easily oxidized metal of the anode (magnesium or aluminum), is called a sacrificial anode. To extend the lifespan of your hot water cylinder you should get a licensed plumber to replace the anode every 18 to 24 months.

Before you call the plumber, try this. Remove excess water from the sink. Pour a few tablespoons of baking soda into the drain following by about a cup of vinegar. Let it stand for 5 minutes or more and flush boiling water down the drain.

An ultrasonic water meter like Kamstrup has no moving parts as with mechanical meters. Therefor it is not exposed to wear and tear and it maintains pinpoint precision throughout its lifetime.

Cross-linked polyethylene (PEX) is a type of plastic material used for the water supply in plumbing systems. PEX pipe offers several advantages over copper pipe. From the plumber’s installation perspective PEX pipe is flexible and easier to install than a copper pipe, saving the client money as less fittings are used. PEX Pipe is suitable for Hot (93ºC) as well as Cold water applications.

At Willz Plumbing we prefer the Cobra Multi Layer PEX Pipe as they are chlorine and scale resistant. It contains a buttwelded aluminium layer for extra strenght.

The maximum rated pressure for these MLP Pipes is 10 Bar or 1000kPa.

PEX Pipe is a very durable pipe. PEX pipe can’t corrode and there is no scale build-up inside the pipe, (as in copper pipe) reducing the flow rate of the water.

Get PEX pipe installed in your plumbing system and enjoy a life span of 40 to 50 years on these pipes if correctly installed.

PEX pipes should never be exposed to sunlight as it will drastically reduce the life span of the pipe.

A “Pressure Control Valve” reduces the pressure of water flowing into the building. It is installed on the main water supply line downstream of the shut-off valve. It is normally installed at the geyser, just before the water enters the geyser. The water pressure from the City Council is usually higher than 600kPa, depending on the area you live in. Your geyser can only handle a specific amount of pressure. If you have a 400kPa geyser installed, your Pressure Control Valve should have a value of 400kPa or less. A 600kPa Pressure Control Valve is the highest rating pressure valve for domestic use. Geysers are not manufactured with a kPa rating of more than 600kPa

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