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ReferencesWater scarcity as the key driver for a vacuum system – Uninove University in Brazil reached water savings up to 90%

Water scarcity as the key driver for a vacuum system – Uninove University in São Paulo reached water savings up to 90%

Due to water scarcity, Evac vacuum collection systems have been installed in 4 out of 5 modern campuses of the same University Group to save significant amount of water. This has enabled a short payback time with return on investment being less than 3 years.

Sao Paulo University, credit Felipe Seriacopi/USP Imagens


Water shortage has been a serious issue at the campuses of Uninove University in São Paulo, Brazil. It creates challenges in the public restrooms in the area and effects day to day life of the students and staff. Lack of water also increases the hygiene risks.


In total, more than 1,700 Evac toilets have been installed in the 450,000 m² / 540,000 yd² construction area in São Paulo. Evac is also working on new universities as well as retrofits and extensions accompanying the rapid expansion of the University Group.


Evac´s vacuum toilet offers up to 90% saving on flushing water compared to a standard toilet, by using only 1.2 liters and our vacuum urinals only 0.6 liters per flush. The Evac toilet system minimizes the impact of water scarcity on campus life.

Hygiene and comfort in restrooms are improved with vacuum toilets that effectively flush out odors and mists and minimize the risk of pipe leakage and contamination. Dedicated and confined wastewater transport also reduces the risk of emanations due to gas and leakage.

When designing, constructing, and modernizing university buildings, Evac vacuum drainage gives the flexibility needed for cost-effective building work. There is no need for a continuous slope – effluent can be transported around obstacles and routed through the ceiling – reducing floor, slab, and wall penetration. Vacuum drainage systems also have a smaller pipe diameter than traditional systems, reducing construction times and costs significantly.

Interested in vacuum technology? Download our guide to vacuum plumbing systems.

Read more:
A green building saves water: Cicignon Park selected Evac’s vacuum technology
Evac’s fresh water generation and vacuum toilets enable staying the night at the “Goûter Hut

Key facts

Uninove University, São Paulo

2014 onwards



Evac Solutions
Vacuum collection
Vacuum toilets


ROI less than

3 years

Toilets installed


Water savings up to

90 %

Contact us for more information

If you are designing, constructing, and modernizing buildings and other land-based facilities, we can offer you a smart and efficient solution for drainage systems. Contact us to find out more.

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