I am over the purchase shock of the 200' color lcd/ self/ dvd/ sonde & scout. Looking towards this summers pending excavation jobs I feel I must purchase a transmitter. Typically our public locates are on the money except that our rural township's employees use devining rods to locate the water lines. I am interested in either of Ridgid's 5 or 10 watt transmiters to go with the scout. Typical we dig for sewer lateral replacement in medium dry sand with municipal water lines 8' to 12' deep. There is typically a copper exterior faucet to attach a lead within 60' of our excavation. Open to your recommendations?