Chemical Safety Shower Drainer

prusaprinters

<h4>Why print this?&nbsp;</h4><p>The safety shower drainer is a simple print that clips onto your shower head with quick-release rockers, allowing you to redirect the flow into a hose and wherever the drain is.&nbsp;</p><p>Often, lab safety showers were not an original building spec and feature poor or nonexistent drainage as a result. Running the shower as needed to purge stagnant water can cause a massive mess and slip hazard, as well as damage water-sensitive construction materials like drywall and wood.&nbsp;</p><p>To prevent damage to my lab, I built this printed adapter so that water can be redirected from my floor to my sink when purging the lines. With this print, I can run the shower weekly without causing puddles to form on my floor.&nbsp;</p><h4>Parts</h4><p>A few off the shelf parts are required to build this print. I have provided amazon links for the parts I used.</p><ul><li><a href="https://www.amazon.com/dp/B09STLYFJV?psc=1&amp;ref=ppx_yo2ov_dt_b_product_details">2x 0.6x8x30 mm compression springs</a></li><li>4x 10mm M3 screws OR 2x 50x3mm shafts</li><li>1x 5" zip tie</li><li><a href="https://www.amazon.com/dp/B08Q7LSQ5Y?psc=1&amp;ref=ppx_yo2ov_dt_b_product_details">1x 1" diameter hose</a></li></ul><h4>Printing</h4><p>The funnel is large, but fits on an Ender 3 print bed when rotated. Print with the tip of the funnel up and no supports, and overhangs should be minimal. Print two rockers; one for each side. Use PLA for strength, since heat resistance isn't a major concern in the lab and strength is critical. Print the funnel with 100% infill, and the rockers with 4 walls, 20% infill.</p><p>Don't worry about having water-tight prints. Since you are only purging the shower for a few minutes at a time, water will not have time to seep into the print.&nbsp;</p><h4>Processing</h4><p>The funnel may require removing strands of filament from the rocker slots if the overhangs print poorly. Verify that the overhangs are clear of loose strands before assembling the funnel with rockers.&nbsp;</p><h4>Assembly</h4><p>Assemble the funnel by placing the springs into the rocker sockets, and compress the spring with your finger while sliding it into the slot on the funnel. The spring should snap forward and seat itself into the funnel socket. If it doesn't snap in properly, you can use a pair of forceps to align the spring. You should feel it snap into place and seat itself. Then, screw the M3 screws into the holes in the sides of the funnel and into the center of the rocker. If you have 3mm shafts, simply slide them into the holes and bend the ends of the shafts into place.&nbsp;</p><p>Finally, slide the hose onto the end of the funnel and use a zip tie to secure it tightly. Trim the end of the zip tie.&nbsp;</p><h4>Use</h4><p>To use the adapter, simply slide it onto your shower head and the rockers will click into place. Check that the print is strong enough to temporarily hold water by giving a slight tug to the hose.&nbsp;</p><p>Run the end of the hose to your closest sink. Slowly turn on the shower so that water flows into the funnel and down the hose. &nbsp;<strong>NOTE: </strong>this adapter isn't designed to hold the full pressure of your shower head. If you give it too much pressure, water will go around the shower head and spill onto the floor. Kinks in the hose may cause the water to back up over the shower head.&nbsp;</p><p>&nbsp;</p>