An experiment with a Subsurface Drip Irrigation system was planned on a Texas farm with salty water to develop design and management recommendations for SDI systems. The objectives of this study were: 1) Compare 8 and 12 in depth, and 40 and 80 in drip spacings when water is salty. 2) Determine if pre-season irrigation can be used to control the soil salinity level on the soil profile when deficit irrigation is practiced on SDI systems. The experiment consisted of a complete randomized experiment with 8 treatments and four replications, with a total of 32 plots. The Duncan test showed some differences between the 40 and 80 in drip spacing. The cotton lint yields, water use efficiency and total gross return were higher for the 40 in drip spacing treatment than the 80 in. The 12 in drip depth also resulted in sligthly higher cotton lint yields and total gross return, than the 8 in. One of the reasons could be since the full requirments of the plant were not met, and the shallower irrigation depth (8 in) produced higher soil evaporation. A similar trend was observed with lower pre-season irrigation depths. One reason it could be that the higher pre-season irrigation depths produced more evaporation.