If you look at the photo I sent earlier, it looks like I could just swap the 
section where the dishwasher drain goes into to the section right above the 
trap, just swap those 2 sections of pipe. This would lower the level of the 
trap a bit. Not sure that it would matter though.

Sent from my iPhone

> On Apr 6, 2016, at 2:48 PM, WILTON via Mercedes <mercedes@okiebenz.com> wrote:
> 
> The up loop to possible highest water level in the sink prevents water from 
> sink draining back into the washer in case of a defective (leaking) valve in 
> the dishwasher.
> 
> Anti-siphon vent is any type of air gap in the drain line; most of the time 
> (an exception could be having a sink and its drain filled with water - 
> blocked drain and sink full of water), an effective gap is where the 
> dishwasher drain is connected to the drain above the trap.  Some 
> jurisdictions require an additional, physical break (gap) in the dishwasher 
> drain hose ABOVE the possible highest water level in the kitchen sink (water 
> can not siphon (nor run/drain) from the sink back past the air gap).   (See 
> illustrations in Goggle's "images for plumbing dishwasher."
> 
> If you don't have either the gap or the up loop, you've been lucky.   I hope 
> you continue to be so.
> 
> Wilton
> 
> ----- Original Message ----- From: "rogerhga--- via Mercedes" 
> <mercedes@okiebenz.com>
> To: "Mercedes Discussion List" <mercedes@okiebenz.com>
> Cc: <roger...@comcast.net>
> Sent: Wednesday, April 06, 2016 3:13 PM
> Subject: Re: [MBZ] Yet even more dishwasher talk
> 
> 
>> Rich, don't know what the anti siphon vent is. Everything works ok on mine 
>> so apparently I don't need it.
>> Wilton, it seems the up loop would serve the same purpose as the trap. 
>> Again, since my unit works fine, I apparently don't need it.
>> As I've said before, I may have just been lucky. Or it could be that my 
>> whole house water filter helps remove chemicals, etc. I know my commode 
>> bowls stay pretty clean and my water heaters (have two) are past normal 
>> expiration times and are still working fine. Just sayin......
>> Kaleb, let us know how your quest goes. This certainly is a perplexing issue 
>> with lots of "possible" causes and solutions.
>> Roger
>> Roger Hale
>> Dinnerware Classics, Inc.
>> Monroe, Ga.
>> 770-267-0850
>> www.dinnerwareclassics.com
>> 
>> 
>> _______________________________________
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