[Greenbuilding] waterless urinals

[Eric Cadora]

Stephen,

I have personally had this problem with my Duravit McDry, but it  
occurred right at the junction of the fixture and the drain line. I  
suspect that this  happened because the line doesn't pitch for 4"-5"  
and that was enough level area for the waste to stagnate. This may  
not have been an issue if there was more usage to the fixture which  
might have kept the waste moving though, rather than giving it a  
chance to crystallize, me being the only user and being pretty  
partial to the great outdoors.  I've eliminated the problem (and the  
accompanying odor issues) by flushing the system more often than  
Duravit suggests for routine maintenance which is a hassle and a  
waste of the sealing fluid, but wotta ya gonna do? Would have been  
nice if the rough-in specs called for a slight pitch. In retrospect,  
it seems pretty logical.

Eric


Eric Cadora
cell: 310-809-0012
fax: 310-382-2075
www.MossCadora.com
eric at MossCadora.com

On Apr 30, 2008, at 10:57 AM, Stephen Collette wrote:

> Sorry Eric, I can't help you directly, but I had another question
> along similar lines. I've heard from a plumber I know that the
> waterless urinals have a tendency to clog up downstream due to the
> crystalization of the urea in the pipe. The crystals build up to the
> point of forming a clog. Does anyone have any actual experience with
> that? Is it a hoax?  Any thoughts would be appreciated.
>
> Stephen
>
> Stephen Collette BBEC, LEED AP
> Principal
> Your Healthy House - Indoor Environmental Testing & Building  
> Consulting
> www.yourhealthyhouse.ca
> stephen at yourhealthyhouse.ca
> 705.652.5159
>
>>
>>
>>
>> I was wondering if anyone has had any experience, good or bad, with
>> Kohler waterless urinals. Architecturally, they're very nice but I'm
>> highly suspicious of their being cartridge-less, since I've had
>> significant odor issues with my own cartridge-less Duravit.
>> Considerably more maintenance than I was lead to believe was
>> necessary to keep the odor down. And I'm only one person. This
>> installation will be in a restaurant. I'm leaning towards Falcon, but
>> the design is so utilitarian.
>>
>> Also, any beta on Zero Flush? One of their models looks great but I
>> haven't heard anything about the company at all.
>>
>> Thanks,
>> Eric Cadora
>>
>
>