Winter and summer, you should disconnect the hose when your not using it
So It’s pretty easy to understand why the hose should be disconnected during the winter. The water freezes and ruins the pipes. If not the pipes, for sure the hose.
But the summer time too? How come?
Because scale builds up in the hose. And it builds up pretty quickly with the heat of the sun.
The scale builds up, and breaks free when you use the hose, and stuff comes out of the nozzle.
Or it doesn’t, and the nozzle becomes clogged.
Microbial growth happens, too, and can migrate into your house. It could make you sick. Or at least grossed out.
If you want to learn more, you can click here.