What do you know about rigid polyvinyl chloride (PVC) conduit? I had almost no experience with it until I spent a brutal, windy Minnesota fall installing 4 in. PVC conduit underground at a new ...

Should PVC schedule 40 pipe and fittings continue to be permitted for combustion exhaust venting? You and I have come across PVC that has gone from white to many colored shades: from light yellow to ...