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Old 04-18-2019, 08:32 PM   #1
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Direct draining a dishwasher?


Is there any code against direct draining a dishwasher into the main sewage line of the house (septic not city)

Alternatively is there some kind of external pump add-on I can get to help get the water to the sink drain? (Dishwasher is quite a ways from the sink and the pump in it isn't handling the job adequately.)
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Old 04-19-2019, 05:13 AM   #2
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Re: Direct draining a dishwasher?


IF your sink is too far away from the DW, yes, I would recommend a separate drain with a trap to handle the water. For the most part, dishwasher waste water is DW detergent, water and food particles, so I don't see a problem with septic nor sewer.
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Old 05-05-2019, 12:53 PM   #3
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Re: Direct draining a dishwasher?


Quote:
Originally Posted by chandler48 View Post
IF your sink is too far away from the DW, yes, I would recommend a separate drain with a trap to handle the water. For the most part, dishwasher waste water is DW detergent, water and food particles, so I don't see a problem with septic nor sewer.
As chadler48 said - "WITH A TRAP." Do not connect your washing machine drain DIRECTLY to the sewer - and don't forget a vent if you're going more than 8' with a 1/4" slope. If your slope will be greater than 1/4" per foot, then the vent has to be closer to the trap to prevent siphoning of the trap - which will lead to sewer gases coming into the dishwasher.

If confused about the vent, you could us an Air Admittance Valve.
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Old 05-06-2019, 10:27 AM   #4
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Re: Direct draining a dishwasher?


Take this as an alternate idea, not nitpicking. I seem to recall you remodeled your kitchen for $30+, wouldn't it be an easier and better solution to move the dishwasher to its proper location next to the sink? Plumbing solved with maybe a little cabinet work.
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