Reimbursements are available to residential water users who install a permanent gray water system or a rainwater catchment system after participating in one or both of these workshops. The gray water rebate workshop takes place from 9 to 11 a.m.; and the rainwater harvesting rebate workshop is from noon to 3 p.m., Saturday, Feb. 22. Advance registration is required. Register at ag.arizona.edu/pima/smartscape
, or call 626-5161, ext. 120.