It's a rentral so all fun (!) tools and methodologies are out.
jim
> On Nov 23, 2022, at 9:53 AM, George P. Dausch IV <GPD4@juno.com> wrote:
>
> Interesting problem. Did you ever think about pulling a vacuum on the roof
> or wherever it exits and working backward?
>
> Sent from my iPhone
>
>> On Nov 23, 2022, at 9:02 AM, Jim Franklin <jamesf@groupwbench.org> wrote:
>>
>> Apologies if I've asked this before, I can't find any emails from it. I
>> rent a basement apartment with a sewage ejection pump. When the weather gets
>> cold, it stinks, almost exclusively while I'm in the shower. After many
>> investigations and lots of thought, I think there's a leak in the vent side.
>> As the catchment tank fills up, the air above the liquid can't push the cold
>> slug of air in the vent pipe, so it exits through the leak.
>>
>> A plumber has been here 3 times, and yesterday replaced the noisy and
>> banging backflow prevention valve, but either he's a nancy boy who doesn't
>> wnt to dive any further down the waste side, or is clueless, because his
>> excuse is that it's very hard to diagnose odors. Or maybe he's doing it for
>> free as a friend of the landlord and doesn't want to create an all day job
>> he won't get paid for.
>>
>> I'd like send a large volume of visible air down the vent and see if it
>> leaks out somewhere. I'm thinking I'd drill two small holes- one for a
>> balloon which I'd inflate to seal the vent, and one below it for a smoke
>> gun. Sound plausible? Better way to do this? Is there such a thing as a high
>> volume smoke gun for consumer prices?
>>
>> I've tried soapy water and smoke sticks to look for escaping air, but it was
>> inconclusive; I think I need positive pressure inside the system. I suppose
>> I could install a coupler in the vent and use the compressor and
>> aforementioned smoke sticks, but I'm looking for a better plan A.
>>
>> thanks,
>> jim
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