Saving water in flushing systems, here’s how

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Saving water in flushing systems, here’s how


The actions we carry out on a daily basis, from the simplest to the most complex, can also be assessed from the point of view of their impact on the environment. Focusing on the most common, for example, we turn our attention to turning off the tap when brushing our teeth, turning off the lights when they’re not needed, or doing laundry during hours of least electrical demand.

Often, however, we omit an action that has a significant impact, every day of the year, on our consumption, and which takes place when we go to the toilet and “we draw water“.

Looking at a family of four, how much of an impact that can have, in terms of water consumption, an action of this type? How many cubic meters are saved, for example by reducing the volume of waste from 9 to 6 liters, rather than 4, and again how is this possible reduce water consumption without compromising bathroom hygiene?

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To these questions, Valsir began offering an answer as early as the late 1990s, introducing the first models of flush cisterns capable of using smaller volumes of water than other systems.

Analyzing the scenario shown above, we first see how much water is used by the considered family in a typical day. Suppose each member of the household uses the bathroom three times a day, operating the full flush once and the partial flush twice.

Once the characteristics of toilet tanka simple calculation of the flow rates is sufficient (on this subject see also the table below).

How much does a toilet tank consume today?

Since the typical volumes of current models are mainly on 6 liters for that total discharge And 3 liters for the half exhausteach member of the family will use:

  • (6 lx 1 + 3 lx 2) = 12 liters of water per day; thus, in one day the family in the example uses on average 4 x 12 = 48 liters of water, which in one month becomes 48 l/day x 30 days = 1440 liters; from daily consumption, one can also calculate the annual needequal to 17,520 litersor if we want 17.5 cubic meters of water per year for each family unit.

If we consider the oldest cisterns (omitting those of 13 liters which have now disappeared), we measure a consumption of up to 9 liters for the total flush, and we can easily estimate that the same group of people , in one yearit would consume more than 26,000 liters of water.

So what’s in concrete the difference compared to the 6/3 liter version?

In one year, this difference reached nearly 10,000 liters of drinking wateri.e. the toilet”consumes“In one year, two and a half times the quantity of water that would be used by a more efficient cistern; and of course the expenses also become two and a half times higher.

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How to reduce water consumption

Photo 1. Tropea S and Ariapur, a view of the installation.

These are consumptions that make you think, especially since drinking water is used in most cases; but how is it possible, from a technical or practical point of view, to reduce this consumption?

Over the years, various companies in the sector have developed technological solutions that allow significant water saving, ensuring at the same time the good cleaning of the bowl. Solutions that result above all from investments in research and development, made both by ceramic producers and by those of rinsing systems, because they are always elements that work in symbiosis.

Indeed, there are rinsing tanks that require 4 liters of water for total emptying, and only 2 liters for partial. Considering the 4/2 liter version, and recalculating the annual consumption of our typical family:

  • this equals (4 people x (4 × 1 + 2 × 2)) = 32 liters / daywho in one year will become 32 × 365 = 11680 litersWhere 6,000 liters less water compared to the already successful 6/3 liter version and 15,000 liters less water than the supposed 9/4.5 liter version as a starting point.

It is clear that a tank with these characteristics must be associated with a toilet that guarantees the good cleaning even with extremely low water volume.

>> To find out more: Bathroom and interior comfort, how to eliminate stagnation of moisture and bad odors

Other advantages of Valsir boxes

Photo 2. Tropea S versions for installation on any wall.

In addition to the advantage of water savingthe new concept of Valsir boxes makes the operations of maintenance or conversion of mechanical drive to pneumatic drive and vice versa: in less than five minutes it is possible to completely disassemble and reassemble the valve and the float, moreover made of materials that hinder the formation of limestone (to get a better idea of ​​these operations, the “tutorials” published in the company’s YouTube channel).

It is also considered that the containers of the S series (Tropea, Winner and Cubik S) are made in polypropylene with added mineral fillers: this results in a remarkable robustness and in an excellent soundproofing capacitycompleted with CE marking as an additional guarantee of quality and reliability over time.

In addition to giving us an overview based on real figures, the characteristics and properties described above help us above all to orient ourselves towards a more sustainable management of resources: choosing to install a flushing system that allows consumption reduction in fact, it guarantees an immediate advantage in terms of use, e dramatically reduces environmental impact of each of us.

Family members 4
Total discharges / day per person 1
Partial releases / day per person 2
Total / partial discharge volume [litri] annual family consumption [litri] difference compared to the 4/2 liter version % difference compared to the basic 6/3 liter version %
13/13 56940 45260 388% 39420 225%
9 / 4.5 26280 14600 125% 8760 50%
7.5 / 4 22630 10950 94% 5110 29%
6/3 17520 5840 50% 0 0%
4.5 / 3 15330 3650 31% -2190 -13%
4/2 11680 0 0% -5840 -33%

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