Q: These will have restrictions about the size and material of your pipes, the distance between certain fixtures and vent pipes, and the placement of ventilation. Some codes also require permits or professional help for certain projects. Make sure you understand your local codes in detail before beginning your project, and consult a local plumber if you have questions or want advice. Building codes change often to reflect current knowledge about safe and effective materials and building standards. Make sure you use the most recent local codes. Consider which pipe material best fits your needs, budget, and any existing piping. Most ventilation systems use small pipes less than ten inches in diameter, which allows plastic pipes like PVC or ABS pipes. In certain situations these can lack strength or durability, so copper, steel, or cast-iron pipes are also available. In choosing a pipe, consider strength, durability, flexibility, weight, resistance to corrosion, and methods for joining pipe. Both PVC and ABS pipes are non-toxic and resistant to abrasion. ABS pipes are easier to install than PVC, and are tougher and more rigid, but are also more likely to warp or deform in the sun. PVC pipes are flexible but durable. Both kinds of plastic pipe are cheap compared to metal or other pipes. Consider the pressure class of the pipe. If you anticipate a lot of pressure in your pipes, go for a higher pressure class. For most projects, class 160 or 200 PVC is sufficient. The cost difference between the two classes is negligible, so people often choose the heavier duty 200 class pipe. The size of pipe you use both for ventilation and for drain or waste pipes dictates the number of fixtures you can tap into the pipes. It also limits the distance between fixtures and their sewage pipes. Larger pipes will give you more freedom in terms of both distance between fixtures and number of fixtures, but using only large pipes can be unnecessary. Examine local building codes for regulations about vent, drain, and waste pipe size. Waste pipes remove water and waste from a toilet. Your building has a large-diameter, central pipe that is the control center of the wastewater system. From here, waste is carried to your sewer or septic tank. Drain pipes carry water from sinks, showers, tubs, and other appliances. They often are equipped with a P-trap, or a bend in the pipe just below the sink or other fixture, in the shape of a P. This traps water in the bottom of the P, blocking the pipe and preventing gases and odors from escaping into your house through the drain pipe. The water in the P-trap is refreshed every time more water runs through the drain pipe. Vent pipes run from waste or drain pipes upwards, ending outside the building, usually sticking up through the roof. This allows unpleasant and potentially dangerous odors or fumes to safely leave your plumbing system, escaping harmlessly into the air outside. It lets air into the system, filling the vacuums left by water moving through the pipe. This allows water to flow quickly and smoothly through the pipes. Vents and other vertical pipes should be as straight as possible to prevent condensation from building in the pipes. Horizontal pipes should slant down toward fixtures so that gravity can push waste and water through the pipes. These commonly run with a slope of 14 inch (0.6cm) down for each horizontal foot of piping. Measure the amount of pipe you'll need before coming in, and ask store employees to help you cut your pipe down to size. Buy fittings to attach pieces of pipe together and accommodate corners, and choose your fittings based on the type of pipe you'll be using. Employees at hardware stores are often knowledgeable about various projects you might undertake and can answer questions or offer suggestions if you're unsure about anything. They can also refer you to professionals who will be able to help more thoroughly with your project.
A: Familiarize yourself with local plumbing and building codes. Choose a pipe material for your ventilation system. Consider size constraints. Understand the waste pipes in your building. Learn about your building's drain pipes. Understand how vent pipes work. Understand the general layout of piping. Visit a hardware store to get pipe, fittings, and materials for joining and supporting your vent stack.

Q: Your face will be the first thing employers see, so you should look professional, approachable, and fresh. Here are some tips to having a fresh face: Wear nice and subtle eye makeup. Wear dark eyeliner, subtle eye shadow, and black mascara to show your employers that you spend time on your appearance. Wear a subtle shade of lipstick. Avoid wearing too much makeup. Wear just enough makeup to make a pleasant impression, but avoid hot pink lipstick, globs of blush, or bright green eye shadow. You should look like you're going to work, not hitting up the clubs. The perfect top is an important part of your outfit. Don't overlook the effect that the right or wrong top can have on your chances of getting hired. Here are some tips for having the right look above your waist: For a professional environment, wear a suit top or a coordinated blouse. Your top should be blue or black. For a business casual or even a casual environment, wear a nice sweater or cardigan. Do not show cleavage. Unless you're applying for a job where your looks are obviously an important factor, minimize the cleavage as much as possible. Your employers will be too busy staring at your chest to listen to what you have to say, and you will just look silly and tacky. Even if you're applying to work in casual environment, your assets will not be an asset. Do not wear a see-through shirt. Your potential employers are not interested in getting a peek at your belly button, bra, or chest. Even your bra straps should be covered at all times. It should nicely match your top and should be clean, ironed, and tasteful. Here are some tips: For a professional environment, wear a matching suit bottom or skirt. For a business casual or casual environment, a cotton or khaki skirt will be acceptable. No matter what material your skirt is made up, it should be long enough for you to sit comfortably and cover yourself. Avoid awkwardly pulling down your skirt during the interview. If you wear a slip under your skirt make sure it won't show. Wear neutral pantyhose. Avoid fishnets or fun-colored or trendy tights. You will look tacky. Remember that pantyhose can tear easily and bring an extra pair of hose in your purse just in case yours rip on the way to the interview. Nothing will distract your interviewers quicker than a giant run in your hose. The right shoes can tie your outfit together. Your interviewers will notice your feet when you're sitting down, so it's important to have the right look. Wear a pair of shoes that are one solid color, preferably black. Avoid showing your toes. Have nice reasonably-high heels. Don't wear platforms or stilettos. Make sure you're walking in them before you go into the interview. Check that your heels aren't worn down or don't have dirt clinging to the bottom. Though you should avoid too many accessories, the right ones can catch your interviewer's eye and can tie your outfit together. Here are some tips: Wear tasteful and subtle jewelry. A quiet silver necklace, ring, or bracelet can help your classy look. Avoid wearing too much jewelry or you'll look weighed down or like you're trying to hard to be trendy. Don't wear more than one ring or bracelet. Avoid showing too many piercings. Even if your ears are pierced eight times, just one pair of earrings will do. Take out your nose ring if you have one. Bring a simple portfolio or briefcase. Show that you're work-ready even if you don't need your portfolio that day. For a more casual environment, a nice one-colored purse will do.
A:
Have a fresh face. Wear the perfect top. Wear the perfect skirt; a black or navy-blue pencil skirt is ideal, coming just down to your knees. Have killer shoes. Wear the right accessories.