Ok plumber types. I understand why venting is now required, but many older systems lack individual trap vents. Moreover, older systems often have a single cast iron vent stack that is nearly impossible (impractical) to tie into on a trap by trap basis. So what is the reasonable solution when remodeling a kitchen or bathroom sink? In my situation, the previous bathroom sink had an old drum trap with no horizontal run- straight into the basement. I am happy to change to a P-trap and add the needed inches of horizontal pipe post-trap, but getting venting in that location seems…

Hi all,  I’m planning to finish my basement and am researching options for the floor and wall assembly to best manage any potential moisture issues.  Some relevant info:  • House age: Late 1970s• Location: Southern Ontario (Zone 6A)• Foundation: Concrete block• Basement floor: Concrete• Ceiling height: 7′ 2″• Foundation waterproofing: Some kind of tar spray on the outside• Slab vapor barrier: no vapor barrier under slab• Current state: Unfinished (slab/foundation exposed on the inside)• Water issues:     • Typically the basement is dry and not even particularly damp.    • On one or two occasions several years ago, a spring thaw caused a small amount (<1/8″) of water to…

I recently bought a two-level 2500 sf house. It has a single HVAC – no zoning. My mom moved in with us and wants it hot. We have all the vents closed upstairs and are still too hot at night. We also want to add air conditioning, which we will use occasionally over the summer as needed. We live in Seattle, so AC is not needed every day. The most environmental option is important to us. Should we create a bi-level two-zoned HVAC and add cooling, or should we switch to ductless? We had a company come out who only…