Connecting the DRAIN
Shower waste trap like in this video or the picture below. I haven't used this product myself but the look is pretty good. It could be more shallow still.
The good thing about this is that it has a thread that you can attach a 1" female to 1/2" male hose connector. Maybe with a 3/4" inch adaptor in between. It's also possible to use PVC pipes with a bigger drain and with space for a dirt lock. Making sure that the screen filter on this drain is very important because it will capture 90% of the largest particles like hair and with a fine mesh skin cells as well. Leaving only tiny things and dissolved solids and liquids to enter the filter.