Urgent help needed

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Old 06-25-03, 07:54 AM
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Lightbulb Urgent help needed

I recently gave a thorough look at me 50+ years old house plumbing as I am going to build a bathroom in the basement and I need to change it. What I found is that my kitchen sink, lavatory on first floor bathroom, washing mashing in basement and utility sink in basement do not seem to be vented. They all drain in main 3" drain stack. All second floor bathroom fixtures also drain in the same stack. I believe the main stack eventually goes through the roof as a vent. As far as I understand all fixtures vents must connect to main stack above all drains so I came to conclusion that first floor bathroom fixtures and basement fixtures (washing machine and utility sink) are not vented properly. Can this really be in 50+ house or my house as an unpleasant exception? I live in central NJ. I actually have a 2" vent that goes from basement but only first floor toilet uses it. Can I use this vent to vent other fixtures too or the vent size is too small?
 
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Old 06-25-03, 08:25 PM
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If it was me, ant new addition you add, vent it seperatly from the old system, not what you wanted to hear, just that I'm nit there to see the layout, so real hard to say what is best.
 
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