There are a lot of variables to consider when setting up a Hydrominder, chemical viscosity, water quality and pressure etc. Most of the time the manufacture initial setting is just a starting point, normally you have to go up a tip or 2. A 0.014 is a Purple tip. https://images.kleen-ritecorp.com/D.../Hydrominders/Metering-Tip-Chart-RiteFlex.pdf