In terms of SANS 10400-D, the following requirements must be met for swimming pools and swimming baths:

A wall or fence must be provided by the owner of a site which contains a swimming pool or a swimming bath.This ensures that no person can have access to such pool or bath from any street or public place or any adjoining site other than through:

• A self-closing and self-latching gate with provision for locking in such wall or fence; or
• A building where such building forms part of such wall or fence.
• A wall or fence shall be provided in any interconnected complex which contains a swimming pool or swimming bath.

This ensures that no person can have access to such pool or bath from any street or public place or anywhere within the complex other than through a self-closing and self-latching gate with provision for locking in such wall or fence.

• Such wall or fence and any such gate therein shall not be less than 1,2 m high, measured from the ground level.
• It shall not contain any opening that will permit the passage of a 100 mm diameter ball.
• The constructional requirements of any steel fence or gate must comply with the requirements in SANS 1390.

Extra protection, such as pool covers, pool nets and warning devices, can also be used in addition to a fence, with such protective measures having to meet certain SANS compliance standards.

Make sure that if you use any of these, you enquire from the supplier whether it is SANS compliant.

https://www.news24.com/SouthAfrica/Local/Express-News/be-aware-of-swimming-pool-regulations-20161213