TY! Tried what you suggested but don’t see “recalibrate“. My drippers are PC. The problem is that at the beginning of the cycle the flow rate is high. After about 3 minutes the flow rate flattens out. Ideally I’d like to recalibrate 5 minutes into the cycle. The drippers are for my backyard vineyard. When the water is on it’s on for 2-3 hours.