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We are often asked why our largest, self-manufactured osmosis-based pure water system, which we build as a series device, "only" achieves a maximum pure water output of 410 liters per hour. First of all: this is an immense amount for such a compact device! If you are interested, you can order the OSMOBIL PRO X here: OSMOBIL PRO X in the store.
An attempt at an explanation including a suggested solution for applications that require more than 410 liters of pure water per hour:
Basically, with the OSMOBIL systems(OSMOBIL ONE and OSMOBIL PRO X) we achieve high water outputs with compact dimensions and a favorable overall price, primarily through the use of so-called high-pressure membranes (12-15 bar). Although these are technically more demanding, they deliver more and, above all, better water than so-called low-pressure membranes (6-10 bar). This technology also makes it possible to dispense with post-filtration of the membrane water, as we already achieve a residual conductance of less than 10 PPM - even with hard input water. We do this in order to combine low running costs with the most compact and lightweight device dimensions possible. This minimizes the use of materials and ensures that the machine is easy to transport. For various reasons, we do not want to deviate from this principle with our series appliances.
In addition, if we go beyond the 500 liters of pure water per hour mark in conjunction with high-pressure membranes - only this technology is suitable for our OSMOBIL systems - we come to the point that a device would not only become significantly larger and more expensive, it would also only be able to manage with a pump that requires a 400 volt connection. However, the need for a power connection on construction sites would then be a further challenge, which we consider to be a disadvantage and restriction in many cases. This is another reason why we do not currently manufacture any series devices that are larger or pump more pure water than the OSMOBIL PRO X.
Ultimately, the respective water tap and, crucially, the water temperature on the construction site often limit the maximum amount of pure water that an osmosis system - whether high or low pressure, small or large - can pump. We know from numerous individual constructions and series devices from other manufacturers that the maximum amount of water can often not be achieved here. From 1.8 bar and a small external connection, the required water volume is often simply not achieved - this also applies to OSMOBIL systems.
So how can a quantity of 600, 700 or up to 820 liters of pure water be produced easily and pragmatically on a construction site if we have a sufficiently strong water pipe with city water?
In most cases, this is possible with an "OSMOBIL PRO X double pack", which we now offer at a special price including the corresponding hose connectors.
The setup is small, compact, cheaper than most large appliances and can also produce over 800 liters of clean water per hour under optimum conditions!
Admittedly: It is two machines with connector pieces and not one appliance from a single cast. But from our point of view, this has more advantages than the other way around!
In our test scenario, we were even able to produce 620 liters of pure water with a fairly weak water pipe (albeit at the beginning of September, when the tap water was quite warm)! Ultimately, it is also attractive for many building cleaners to be able to supply two different construction sites with pure water on a daily basis and to be able to connect both machines together if necessary - e.g. when a solar robot or a large façade cleaning job is due. The twin pack does this very well.
Using the Y-pieces supplied, the city water is simply separated and distributed to the two machines. Behind the appliance, another connector ensures that the clean water (permeate) is brought together. With this permeate output, however, it is important that we deviate from our actual recommendation, which states that the extension from an osmosis system to the "consumer" (washing brush, rotating end brush, robot) should ideally be a 3/8" hose.
A 1/2" hose should then be used here - as an exception.
We will be happy to advise you on this complex setup, which is actually quite simple once you have understood the structure!
