A simple non return valve that lets you easily start a siphon with a garden hose. Male garden hose thread for easy attachment. Good for draining hot tubs, pools etc.

To use, attach to the end of the hose then rapidly move the hose up and down in the water. The valve will allow water to flow in but not back out and once the water level is sufficient the siphon will be self sustaining.

Print in PETG if like me you leave garden thing outside where they get UV, otherwise PLA shoiuld be fine.

Inspired by (but not remixed from) the Shaker Siphon Pump by @drjones https://makerworld.com/en/models/414882