is primarily concerned with the provision of water and the disposal of sewage.
If the plumbing system is expertly built and properly installed, it will be


is a waste water that emits toxic fumes. The gases include methane, carbon
monoxide, and sulphide, all of which are hazardous to one’s health and can be
dangerous. We cannot halt the process of generating the foul gases from waste,
but we can certainly prevent such gases from entering the house. Sewer gases
can be dangerous at times and cause minor disease. Plumbing traps come into
play here.

A trap is a device that keeps sewer
gases out of buildings. The traps, which are located beneath or within a
plumbing fixture, store just a little amount of water. The retaining water
creates a water seal, preventing foul gases from entering the building via
drain pipes. Traps are thus put in all plumbing fittings such as sinks,
washbasins, bathtubs, and toilets. This page examines trap characteristics as
well as the various types of traps and water seals.Types of traps are as under


Gully Trap

If the movement of foul gases
through sewers, drains, and waste-pipes is not stopped by proper equipment,
they might cause a nuisance by entering dwellings through house-connecting
pipes. Traps are the devices that are used to prevent the entry of noxious
vapours into homes. These are deep seal traps, having a water seal depth of at
least 50 mm. It also prevents cockroaches and other insects from entering waste
pipes transporting sewage water.

P trap

This trap is used in coordination
with an Indian closet (ORISSA Pattern ). The traps are made of cast iron or UPV
sheet. This trap also has a water seal and keeps bad gases out of the house.

S trap

This trap, like the P trap, is used
to repair water closets in toilets. The sole distinction between a p trap and a
s trap is that a p trap is used for outlet through a wall, whilst a strap is
used for outlet through the floor.


If you have a house with numerous
stories and bathrooms, choose a Q-trap because they are suitable for
upper-level use. They work almost identically to P-traps and S-traps, with the
key distinction being the characteristic “Q” shape. Aside from that, Q-traps
are standard plumbing traps used to prevent sewage odours through the use of
water and piping.

The Q-trap, like the P-trap,
captures water in the “U” shaped region of its body, and they are effective.
Choosing between a Q-trap and a P-trap is primarily a matter of personal
preference or the amount of space available below the drain. If you run the
water on a regular basis, you will never have to worry about your Q-trap drying

Floor trap or Nahani trap

This trap is installed on the floor
to collect waste water from the washbasin, shower, sink, and bathroom, among
other places. These traps are made of cast iron or UPVC and have a removable
grating (JALI) on the top. The trap’s minimal depth. The minimum water seal
depth should be 50 mm.



Intercepting Trap

Intercepting traps are not required
for homeowners, although they are popular in large buildings and intercept at
the sewer systems. They are efficient and capable of handling big amounts of
wastewater from different plumbing applications in a large structure. Most
office buildings and large enterprises must intercept traps in order to fulfil
their plumbing needs while preventing sewage pollutants from escaping.

This trap is installed at the last
main hole of the building sewage system to prevent bad gases from entering the
building sewer from the public sewer. It has a 100mm deep-water seal.

Bottle trap

Because of its design, the bottle
trap is ideal for narrow locations under sinks. They go straight up and down
horizontally, maximising space and making maintenance simple. You can service
and clean a bottle trap from the bottom, making the cleaning process easier.

A bottle trap is provided to
collect waste from washbasins, kitchen sinks, and other appliances that do not
have an in-built trap.

Grease trap

Grease traps are the final barrier
between a kitchen and the wastewater system. They work to prevent thick oil and
solid pieces from entering and hurting a kitchen’s wastewater system. Grease
traps are used in all restaurants and fast food outlets; if they weren’t, they
wouldn’t be in business for long.

This trap is designed to catch
waste grease and may be cleaned from the surface. This is commonly found in
food processing units.

S-traps, P-traps, and Q-traps are the most frequent types of
plumbing traps, but there are many others. Each of these plumbing traps has a
particular purpose, and not all of them will meet your building regulations. If
you have enough space, an S-trap or P-trap may work, however specialised types
such as bottle traps may come in handy. 
Do comment and let us know your thoughts in this blog.


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