Uneven watering: In drip systems installed on slopes, the emitters at the base of the slope may apply more water than those at the top. Install pressure-compensating emitters on the circuit. Or split up the circuit into several circuits, so that the emitters on each circuit are on approximately the same level. This will require installation of a new valve and line for each circuit.

Clogged lines or emitters: Once a month, turn the system on and check each emitter. Remove clogged emitters from the line and blow through them, or insert a small wire through the orifice. Make sure that a filter is installed at the valve, and keep it clean.

Surface flooding caused by broken or separated lines: Remove the damaged piece of line or the broken fitting. Cut the line ends cleanly with a pocket knife, insert new line or fittings, and slip it together. Use digging tools with care around drip systems, since the polyethylene plastic is easily cut. If a particular fitting frequently pulls out of the line, check the pressure reducer to make sure the setting is correct (20 to 25 pounds per square inch for most drip systems). Attach the fitting to the line with metal screw clamps if necessary.