WATERING - Knowledgebase Question

oldsmar, Fl
Question by sleepotb
March 23, 2009
We are rationing water in tampa..so if I have started to water with used water..left over from cooking or dish washing..will this help or hurt plants..especially left over water with dishwashing liquid in it?


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Answer from NGA
March 23, 2009

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In general terms gray water can safely be used on ornamental shrubs and trees but not on anything edible. State regulations for graywater vary widely, so check with your municipality to be sure it is legal. Some states consider kitchen-sink drainage blackwater because it contains grease, nutrients and bits of food. In most states, graywater cannot be used above ground without a special permit so check into it before using gray water in your landscape.

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