Tired of getting too much water in the low spots? Toro Aqua-Traxx Flow Control gives you uniform output regardless of pressure changes caused by hilly terrain and long runs. Control how much water your plants receive by increasing or decreasing the operating pressure, 10-25 PSI. For uniform output you need 8-10 PSI at the highest point of the field. Multiple laser slit outlet reduces startup clogging & impedes root intrusion. 150 mesh filtration required.ding Multi-Stage filters. Optimized flow passages further resist clogging. Toro Aqua-Traxx® Azul™ drip tape offers an innovative emitter design that protects the labyrinth from debris and maximizes clog resistance and performance. Now you get the same great quality and performance you expect from Aqua-Traxx with even more clog resistance and less worry.