These pictures were taken when a homeowner called me and said her boyfriend rewired her pool equipment. She wanted me to come and take a look at it. I didn't know garden hose was an approved conduit to run wires through.
that green wire might just be a really bad pull job. I think that it is just looped there. Regardless, this should just all be re-rewired to make it less awful.
The garden hose idea isn't that bad, however, provided that it is for low voltage and temporary use only. I have a fiber cable run inside a garden hose that I use for really long runs where twisted pair wouldn't work. I use it a lot for outdoor concerts if were streaming audio on the web. It is only for temporary stuff, though.