43 place This is thanks to the different devices and test sta tions which Bensing explains can be used universally for any test setup It looks like a small shower stall On the floor of the experimental layout is a Henkel sponsored doll s head whose short haircut reveals the substantial number of shampoos and rinses that it s already enjoyed in its short lifetime Another still intact head with slightly longer real hair is already waiting in front of the shower for future use On the glass shower screen is an energy efficiency label just like the ones that can be found on refrigerators Bensing laughs My colleagues like to have fun The idea behind it is that one day we d like to create a type of seal for our shower heads especially in relation to water consumption Most likely my colleague stuck this label on my workstation to motivate me The concept of the shower lab is very simple Bensing installed a container on the outlet that measures the cloudiness of the waste water This makes it possible to evaluate the rinsing process Our test procedure goes like this install the shower head make the hair wet and shampoo it rinse change the shower head or spray type shampoo the hair rinse it out and then compare the re sults explains the engineer The flow rate is reviewed as well as the time it takes for the water to run clear again The procedure requires always using the same amount of identical Henkel product One series of tests for ex ample involves measuring how fast shampoo is rinsed out at different temperatures which means that only the temperature changes while the spray type and water flow stay the same One small piece of plastic plays an important role in these tests the flow regulator It is built into the vast majority of shower heads and is indispensable in the US market for example where water consumption is more strictly controlled As its name implies a water flow regulator regulates the flow of water and makes sure that the same amount of water always flows from the spray plate no matter the amount of water pressure in the pipe This is of course helpful for us since the water flow in our ex perimental setup remains constant thanks to this simple mechanism says Bensing One step at a time she has carefully and thoroughly ap proached all angles of this topic and has now completed the shower lab after a pilot phase of about a year Now the tests can begin in earnest Before the end goal of the en ergy efficiency label is possible however the trial doll s head will have to take a few more showers The concept of the shower lab is very simple Bensing installed a container on the outlet that measures the cloudiness of the waste water This makes it possible to evaluate the rinsing process The shower lab is connected to a computer that records the results using a measuring curve Pure Freude an Wasser GROHE Magazine 42

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