Donors must weigh at least 110 pounds and be at least 17 years old. In Minnesota, 16-years-olds may donate with written consent from a parent or guardian. During your donation appointment, you will complete a brief health questionnaire to make sure blood donation is safe for you and the recipient of your blood.
Three inch pipes are used to handle most residential toilets. 1.5 inch lines are used to handle waste from kitchen, bathroom and powder room sinks. 2 inch drain lines are common pipes for laundry drains. Clogs can develop easily on horizontal runs of pipe. Friction causes the water within the pipe to slow down. To achieve good water flow, try to install horizontal drain pipes so they have a minimum of 1/4 inch per foot slope. 3/8 of an inch per foot is actually better.
2: Most plumbing fixtures have curved trap sections that hold a little water, forming an airtight seal to keep gases in. This section of pipe is easily removed to clear clogs. 3: Toilets also have a trap, which is what keeps standing water in the bowl. The toilet drain is the largest drain pipe in the house. 4: All household drains meet below the house in a main drain that carries the wastewater to the municipal sewer lines or to a septic system. A Y-shaped pipe in a basement or crawlspace provides clean-out access.