Piping applications

Drainage

When dealing with plumbing and water disposal, it is vital that piping systems are able to withstand the elements to prevent leaks, odor, and hygiene issues.

The first to introduce HDPE piping systems in the Philippine market in 2004, Othmann is now the leader in sovent design systems. We pride ourselves in delivering top quality, authentic drainage piping systems and a 100% odor-proof installation track record.

HDPE Drainage Pipes

Waste Water Drainage

Waste water drainage systems are an essential but often overlooked part of any building project. This is true especially for hotels, private residences, and hospitals where high standards of hygiene and sanitation need to be met.

When proper waste management is a priority, plastic piping is a tried and proven choice for reliable, lasting, and cost-effective drainage systems. This is why Othmann offers our own collection of sustainable, easy-to-install plastic piping solutions with leak-proof technology for a wide range of drainage applications.

HDPE Piping Systems
Sovent Systems
Acoustic Drainage Systems
7 pieces of short HDPE Pipe Cutouts
HDPE Drainage Pipes
Geberit Sovent Aerator installed with HDPE Pipes
7 pieces of short HDPE Pipe Cutouts
White with Green and Pink Stripes Rehau Raupiano Pipe with Rubber Bracket
Sample picture of installed Raupiano Plus Acoustic drainage system
Explore our HDPE piping brands:
HDPE Piping Systems

HDPE is one of the most trusted piping systems for numerous wastewater drainage applications. This flexible material is the choice of many developers because it withstands earthquakes and seismic movements, and is persistently leak-proof and resistant to corrosion and chemicals.

Explore our Sovent piping brands:
Sovent Systems

The HDPE Sovent System is a game-changing alternative to conventional drainage solutions. First to use the single-stack design, it optimises water flow and air columns to eliminate the need for ventilation piping—giving you 40% more usable space and 50% more cost savings compared to conventional drainage systems.

Explore our acoustic drainage piping brands:
Acoustic Drainage Systems

When silence is critical, acoustic drainage systems are the modern solution. Quiet and reliable, these lightweight acoustic drainage products feature a noise-insulating design ideal for luxury hotels, residences, or any establishment where noise disturbance should be reduced to an absolute minimum.

Storm Drainage

As global climate shifts, rain is becoming more unpredictable and typhoons are getting stronger. To protect structures from heavy rainfall, storm drainage systems must be sturdy and watertight to ensure that they can withstand extreme conditions and drain water quickly, efficiently, and effectively.

HDPE Piping Systems
Siphonic HDPE Drainage Systems
7 pieces of short HDPE Pipe Cutouts
Gutter Drain installed with HDPE Drainage System
Geberit Pluvia Siphonic Roof Drainage Installed in Roof
7 pieces of short HDPE Pipe Cutouts
Explore our HDPE piping brands:
HDPE Piping Systems

HDPE has become the trusted go-to solution for storm drainage systems with its strength and durability. Leak-proof and corrosion-resistant, HDPE systems are more robust and flexible compared to PVC pipes, with higher resistance against cracks, deformation, and deposits—ensuring reliability even against flash floods, earthquakes, and natural elements.

Explore our HDPE drainage piping brands:
Siphonic HDPE Drainage Systems

Siphonic drainage systems enable large volumes of water to be extracted quickly, draining roofs efficiently and reliably even under the heaviest rainfall. A breakthrough in rainwater drainage design, Geberit’s siphonic technology suctions off double the amount of rainwater with fewer pipelines at half the pipe diameter.

Subsurface Drainage

Often used for townships, community developments, and road networks, subsurface drainage systems are constantly exposed to the elements and everyday stress. For this reason, subsurface drainage piping must have the capacity to withstand repeated impact to ensure a long service life.

Corrugated PE System
Double Walled Corrugated PE with Smooth Inner Walls
Water flowing through Double Walled Corrugated PE drainage
Explore our corrugated PE brands:
Corrugated PE System

Designed for durability, fast installations, and long-term use, corrugated PE systems feature impressive strength and chemical resistance. It is stronger, more flexible, and lighter than RCP (reinforced concrete pipe) systems—making the subsurface drainage system easier to install and less prone to damage even under constant load and stress. In the long run, corrugated PE enables you to save more on costly repairs.