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Plumbing in the Home/air gap for dishwasher
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Question
I am installing a new Bosch dishwasher, and am trying to decide if I need to have an air gap or not. The installation manual says it can go either directly to drainage or through an air gap. Under what conditions do I need to have an air gap? Thanks,
Good morning Oliver,
Air gaps are installed in the drainage system to prevent the discharge from the dish washer to enter the sewer system and the contaminated water to drain back into the dishwasher after the pump stops.
When we install a dish washer we loop the discharge hose as high up under the cabinet as we can and secure it with pipe straps. This creates a air gap so that when the pump stops nothing from the drainage system can flow back into the dish washer. Some times it's not possible to loop the hose up the where it's effective and then we have to install a manufactured air gap. I've installed countless dishwashers in new construction and never had to install a mechanical air gap. Just loop the hose up and secure it so it stays there and you'll be fine. Good luck and thank you for rating my reply. Tom
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Answers by Expert:
speedball1
Expertise
About me: My Plumbing Expertise: I retired from plumbing after a lifetime in the trade. all phases from service and upkeep to construction, both residential and commercial. I am qualified to do anything in plumbing from fixing a leaky faucet to drafting a set of plans for a commercial shopping center and supervising the construction. My last five years were spent as a trouble shooter for a large plumbing company. I took on all my companys complaints. I have been a expert on the plumbing page at Askme.com. In a field of 200 experts my rating was number one. You may also find me at Answerway.com and AskMe Help Desk.com. This is fun for me and if I can help anybody out that`s iceing on the cake. Degrees & Certifications: As for degrees, I don`t have any. Just a Journeymans ticket, but hey! How about fifty years experience?
Experience
Life Experience? Hmmmmmmm! Ran away at 15 and joined a carnival, Navy at 17 Merchant marine at 19 I've had a hellava life.
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