Barriers include:

• A failure on the behalf of the WATSAN sector to engage meaningfully with the other sectors involved in IWRM
• A lack of models of how to go about integration.
• A critical lack of both policy and the personnel to implement it. Conflict between decentralisation and the desire to maintain central power and influence.
• The difficulty of getting the large, diffuse group represented by the WATSAN sector to interact meaningfully with the small, well-organised lobbies of big agriculture and industry.
• An unwillingness to deal with the implications of the critical need for reliability (and hence often large reserves and buffers) in domestic supplies, and the implications this has on the availability of water for other sectors