Sprayheads-UDBS - Carnegie Mellon University

Sprayheads

sprayheads

The sprayheads component of The PURIFLUME is a proof of concept component that originated from the proposal for the Re-Imagining LESLIE Masterplan.   In re-imagining the space of Leslie Park Pool, the UDBS proposed a re-design of the typical spray park through the combination of a flexible space and innovative sprayheads that followed the same ideas of flexibility and sustainability.

sprayheads

The sprayheads of the Re-Imagining LESLIE Masterplan (left) were designed with the idea to emphasize the different effects of the sprayhead's function as main attraction and the form of the sprayhead could be demphasized as opposed to the current state of sprayhead designs where the form was the main focus.   The sprayheads were designed to have a variety of effects as water features as well as lighting features to appeal to a wide audience (diagrams on the right).

sprayheads

The sprayheads initially followed the concepts of: interchangability and varied effects (top, early concept image), low flow technology (lower left, Venturi Effect diagram), and dual functioning (lower right, early schematic drawing of separation of water/electrical lines for sprayheads.

sprayheads

Following the transition from masterplan to the proof of concept project in The PURIFLUME, the UDBS designed through iteration a series of sprayhead prototypes that could prove the ideas of the sprayheads in the master plan.  The various iterations addressed ideas of customized vs mass produce parts, abstract forms vs literal forms, separation of water and lighting elements within the sprayhead, and functionality with The PURIFLUME's systems.

sprayheads

Three full scale prototype sprayheads were fabricated through the use of SLA (stereolithography printing) digital fabrication technology.   The final prototype design consisted of internal low flow water component and a spherical encasing.  The images show the details of the prototype such as assembly.

sprayheads

Several prototypes were produced before the final design through the use of the School of Architecture's dFAB (digital fabrication) Lab for testing.  This one prototype was a test for several elemetns such as the looping flexible tubing, the slotted ribs for tubing configuration, the water pressure through the spray heads, the use of off the shelf components with customized components, and assembly.

sprayheads

The final system for the sprayheads on The PURIFLUME included a manifold (top) that split input municipal water into the various lines that would connect to the sprayheads.  The lighting features were integrated through separate water proof lines (lower left) that then connected into the sprayheads.  The lower right image shows the linear pipe component that sprayheads attached to with the enclosed electrical line below.

sprayheads

Educational side view of the sprayheads in operation with the manifold in the upper portion of The PURIFLUME, the various lines of tubing which loop and curve their way to the sprayheads (for the purposes of passive solar heating of the water, and static head loss) through the slots in the transverse ribs. 

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The final sprayhead prototype assembled. The green and yellow components are stock components purchased for standardization of connections and the electrical wiring can be see coming out through the adjacent puncture. The various depressions in the spherical form are interactive elements within the design for children. Children are encouraged through the depressions to plug up the spray nozzles with their fingers and activate other spray nozzles on the sprayhead.

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Images of the sprayheads attached to The PURIFLUME (top) and in operation as children play with the objects.