The rainy season is coming, but you still have time to get a discounted rain barrel to “harvest” the upcoming rains, cut your watering costs and protect local beaches by reducing pollution. Through Oct. 13, County residents can get a discounted, top-of-the-line, $90 Ivy rain barrel — a cost that could shrink to as little as $25 — by ordering one online, thanks to San Diego County’s Watershed Protection Program and the nonprofit Solana Center.