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I am trying to add plumbing to a wall hung toilet. The drain and vent connections are done as shown in the picture. Is there any problem with this setup? The part I am not sure about is whether the 1-1/2" drain pipe coming from the sink can be connected to 3-in line before the toilet vent, or...

We are planning to purchase an ERV for our 2800 sqft home (ZIP code 94022). We have narrowed down the search to the following two units: Broan ERV140TE or Broan ERVH100S. We did consider more efficient and more expensive units like Ultimate Air or Zehnder, but they either have very long wait...

We got a surprise rain about 4 hours after I sprayed a bunch of metal posts and channels with one: http://www.sherwin-williams.com/painting-contractors/products/catalog/pro-industrial-procryl-universal-acrylic-primer/ In the next morning, I can see bubbles appearing on some of the items I...

Has anyone tried dense-packing cellulose insulation in walls using Home Depot/Lowes DIY cellulose blowers ? I am trying to decide between RockWool R15 batts and dense packing cellulose, and I am not sure whether a stronger blower is needed for cellulose. Since I opened up the walls, I am...

We have installed a Fujitsu AOU48RLXFZ1 outdoor unit on the exterior wall of our house. There are 6 indoor units connected to this outdoor unit. This is in San Francisco Bay Area. When the outdoor unit is running, it creates a significant amount of vibration and noise. Although there are...

Our house was built in 1956. We live close to San Andreas fault line, it is within 10 miles distance to the house, in San Francisco Bay Area. The house has no cripple walls and it is a single story, ranch style house. It has a crawlspace, and a foundation wall of about 2 ft high. The floor...