How does this apply to hobbying? It doesn't really... I can't actually think of a moment I've even thought of using one. However, building a high-powered pumping system to clean my turtle tank easier is yet one more application of water use where I seem to constantly forget to double-check packaging for a washer.
Metal washers go great under bases to add some weight to your miniatures.. but rubber ones .. they prevent flooding.
So, this is just a brief somewhat off-topic post, reminding you to put washers into hose nozzles.
|Washers prevent this... not really... but maybe.|