venting

We will be replacing our existing over sized boiler with a new higher efficiency boiler and want to reuse out existing chimney flue to vent the exhaust. Since the new boiler will produce lower exhaust temps, it was recommended that we use a 4" liner for the existing flue with 4" B-vent between...

Hey guys Ive been thinking of adding a shower in my basement bathroom. I have a toilet coming right off the main 4" drain. The 4" IRON comes out of the floor into 3" PVC and goes up to the roof. Im thinking of replacing the old iron toilet elbow with a new PVC 3"x3"x2" and running with 2" PVC to...

Okay so my washing machine is overflowing the standpipe when it drains, it was doing this a while ago and then it stopped but now it's doing it again. The washing machine is on the main floor in the middle of the house (it is supposed to be for a stackable but my dryer is in the basement), the...

So I am working through replacing all of the cast iron and galvanized steel drain and vent piping in a home I just purchased. The cast is cracking and the galvanized is rusting and joints are falling apart. I won't even get started on the clogged supply lines, that is the next project. I have...