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cause runoff and water waste; |
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require a large number of circuits to compensate for a limited water supply; |
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are inflexible and difficult to change; |
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are inherently uneven in the application of water; |
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cause additional unevenness in water absorbtion due to runoff; |
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require expertise to plumb correctly; |
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are labor intensive to install; |
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can cause erosion on slopes due to high flow rate; |
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cause pressure problems for other water uses in the home; |
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are incompatible with pump/pressure tank systems; |
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cause soil to become overly saturated; |
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are subject to clogging by insects; |
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are subject to damage from foot traffic, mowers etc; |
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are subject to damage from frozen ground; |
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require a large number of parts; |
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require separate circuits for each different watering zone; |
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require a lot of pipes and digging; |
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create a fine spray that is easily displaced or evaporated by the wind; |
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usually require professional installation for best results; |
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are not at all suited to watering complicated or irregular shapes; |
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are poorly suited to watering plants taller than mowed grass; |
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require daily visual inspection to notice problems; |
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suffer from a large quantity of poor quality components being sold. |