Pool fountain with valve for switching between jet and fountain

thingiverse

I wanted a fountain in my pool, so I designed one and also created a valve to allow me to easily switch between jet circulation and fountain mode. The assembly attaches directly to a standard pool jet. To understand how it works, you can see the video below: https://youtu.be/eHzg6lwoskg You can see it in action (in fountain mode) here: https://youtu.be/X9eyqNJj4Go The bracket on top is loose-fitting and serves as a spacer to prevent unnecessary pressure on the pool wall screws, which are pushed back by the water. You can choose to go without it if you prefer, but I find it beneficial. Initially, I designed a more complicated top spray nozzle that allowed me to select one of three different spray patterns by turning a printed ring. Unfortunately, with 0.4mm clearance between parts, water leaked through. When I reduced the clearance to 0.2mm, the two parts couldn't be separated after printing, so I decided on a single static spraying pattern. To assemble the spray fountain, you'll need a piece of 3/4" PVC pipe, determining its length based on the distance between the pool jet and water level. You want the spray fountain to be above the water level. In the assembly video, I've already glued the valve to the pipe, and I intend to do so with the nozzle as well. Alternatively, you can use a screw, which will hold it securely. The assembly turned out great because even when you change the valve for standard water circulation, some water enters the pipe and into the nozzle, keeping it cool (I printed this in PLA and don't want it to melt in the sun). The only part that isn't cooled is the above-water portion of the bracket. One interesting effect occurs when I remove the plug completely: water comes out of both the jet and fountain but at a weaker flow rate, creating a nice ambiance sound. If you have any questions, please ask in the comments section – I'd be happy to answer since this creation is my favorite so far! My kids absolutely love it too. If you make one, please post a picture so I can see how it looks in your pool!