I’ve been using a modified Hozelock garden fan sprayer to water the garden from our ‘well’ for years – this works well to deliver a large volume of fairly low pressure water.
It’s been gradually falling apart for a while, and finally broke at the connector end. I’ve since patched it up, but it’s only a matter of time before it breaks again.
Unfortunately, fan sprayers of this type do not seem to be made any more, so yet again, I fired up the 3D design software and designed a replacement. The first attempt had a number of problems, but the 2nd version works really well:
The inlet end is threaded to accept the existing connector and sealing washer. And if this one should break, it’s just a case of printing another one!