Drain and Sewer systems are provided in order to prevent spread of diseases by:
- Preventing contact with faecal and other waterborne waste,
- Protecting drinking water sources from contamination by waterborne waste and
- Carrying runoff and surface water away while minimizing hazards to the public.
What is a drain and how does it work?
It is put inside you during the surgery by the doctor and will stick out of your body until it is removed, usually a few days later. It connects to a small plastic bag that collects any fluid or air that has drained away from where you had the operation. Not all operations require a drain to be in: your surgeon will advise you if one is necessary.
What is a surgical drain?
A surgical drain allows those juices to drain away and hopefully reduce the chances of getting an infection after the operation. Here is an example of a drain after someone has had surgery on their tummy (abdomen). You can see the drain, a thin tube, coming out in the centre of their lower tummy:
What is a drain wire used for?
A drain wire is the uncovered, stranded wire you find interleaved with the covering foil inside of shielded cables. This cable is an important element in facilitating the cable’s operation. Drain wires are employed in cables in combination with a metallic shield to secure adequate grounding.
What is a drain trap?
Aaron Stickley is a licensed plumber with first-hand knowledge in solving home plumbing problems. If you look below your kitchen or bathroom sink, you will notice a U- or S-shaped curved pipe coming down from the drain opening. This is the drain trap.
What is the purpose of a drain after surgery?
Your surgeon has put one or more drains (or drainage tubes) made of soft plastic in the area of your incision. Drains are used in the incision area to stop fluid from building up. Fluid keeps the surgical site from healing. Each drain has a suction bulb (the “drainage bottle” in the figure above) that will hold 3-4 oz.
What is the purpose of a sewer drain?
Drainage & Sewerage systems are essential to modern plumbing. A drain is a pipe that serves only one building, conveying water and waste water away to a sewer. A lateral drain is a section of drain positioned outside the boundary of a building, connecting with the drains from other buildings to become a sewer.
What is the main drain in a house?
Simply put, your mainline is your sewer line. It's the line that goes from your house to the city connection or your septic tank. Before leaving your home, all of your drains dump into your mainline.
What is the difference between a drain and a sewer?
A drain is a pipe that serves only one building, conveying water and waste water away to a sewer. A lateral drain is a section of drain positioned outside the boundary of a building, connecting with the drains from other buildings to become a sewer.
Why is drainage important?
History. Water is the most important compound ensuring life on Earth. But on roads the presence of water means mainly trouble. A main cause of road damage, and problems with the serviceability of road networks, is excess water filling the pores of road materials in the road and in the subgrade soils.
When was drainage built?
Drainage system at the city of Tharros in Sardinia, Italy, founded by the Phoenicians at the end of the 8th century or early 7th century BC.
What are the problems caused by poor drainage?
Poor drainage creates many problems to both road users and road owners. Typically these are: 1) traffic safety (aquaplaning and ice) Poor drainage is a traffic safety risk. Water may accumulate on the road like ponds. The accumulated water creates a risk of aquaplaning during rain.
When was the drainage system in Sardinia founded?
Drainage system at the city of Tharros in Sardinia, Italy, founded by the Phoenicians at the end of the 8th century or early 7th century BC. Drainage system at the city of Tharros in Sardinia, Italy, founded by the Phoenicians at the end of the 8th century or early 7th century BC. 1. Prev Next.
What causes water to flow onto the pavement?
Delayed snow removal from the road shoulder causes water from the melting snow to flow onto the pavement where it causes traffic safety problems. Delayed snow removal from road shoulder also causes water from the melting snow to infiltrate under the pavement in the road shoulder, forming ice lenses.
Symptoms
Design
- A plumbing drain trap is designed to retain a small amount of water each time the sink drains, and this water standing in the bottom of the curved portion of the trap seals the drain and keeps sewer gasses from escaping the drain and entering your home. There are traps in every drain because any connection that leads to the drain system is also a p...
Safety
- Whenever you encounter a strange odor in any room where there is a drain, always make sure that the trap is not dry. If a drain trap is dry, the sewer gas can escape and cause the smell. This is usually a quick fix that can be remedied by running water down the drain and filling the trap back up with water. Sewer gas is hydrogen sulfide, which is created as organic waste decays. The sm…
Location
- The location of the drain trap is often obvious. The standing water in your toilet indicates the presence of a drain trap, for example. If you look to the backside of the toilet, you can see the curved shape of the drain through which the water exits.
Other
- Other plumbing fixtures have the drain trap in an out-of-the-way location, such as the kitchen or bathroom sink, where the trap is usually hidden in a cabinet under the sink. When you look at the sink, you cannot see the standing water, but if you follow the drain lines, you can see the required U or S shape where the water is held to block the sewer gas.
Advantages
- Sink traps have the added benefit of trapping small objects dropped into the drain, plus they are fairly easy to remove. Don't worry if you drop a ring or something valuable down the drainit is likely safe in the trap. Traps also collect hair, sand, and other detritus, and also limit the size of objects that can pass through into the rest of the plumbing. You can take apart most traps for cleaning, …
Use
- Large plumbing fixtures such as showers, tubs, and washing machine drains also have drain traps, but they are not as easy to see because they are under floor level or behind walls. Tubs and showers have traps that are harder to get to and either require crawling under the house or cutting a hole behind the tub or shower and digging out the area where the trap is located. Washing ma…
Risks
- When going on vacation or traveling away from the house for long periods, some people stuff drain openings with plastic wrap to keep sewer gases from invading the house while the fixtures are not in use. If you choose to go this route, a toilet can be shut off and emptied and the toilet bowl can be loosely stuffed with a plastic bag. Don't forget floor drains and shower drains; placi…