In rural and peri-urban areas of most developing countries, the use of sewage and wastewater for irrigation is a common practice. Wastewater is often the only source of water for irrigation in these areas. Even in areas where other water sources exist, small farmers often prefer wastewater because its high nutrient content reduces or even eliminates the need for expensive chemical fertilizers. In order to meet this projection, Field experiments were carried out in different demonstration fields at North Delta. Maize and cotton crops were cultivated in the growing season of 2014. A split-plot design was used, where main plots were assigned to the different irrigation water sources e.g. fresh water, sewage water, drainage water, drainage water alternative with fresh water and sewage water alternative with fresh. Three methods of irrigation namely; traditional surface irrigation, gated pipes and surface drip irrigation were laid in sub plots. By summarizing these results in easy readable charts, fiber crop such as cotton is preferable to be cultivated when treated waste water used in irrigation. Also, drip and gated pipe irrigation saved water in clay soil and increased irrigation application efficiency and water productivity. Alternating of low quality water with fresh water can optimize the water unit return due to saving fresh water.