If you turn the hose tap on, water will flow out through the hose tap into the hose. Hoses are stretchy and bendy and can swell to take up extra water before they spring a leak / they become detached from the hose tap / the nozzle blows off . Yes, it does.Click to see full answer. Consequently, what happens if you leave hose on with nozzle?2 Answers. It is certainly OK to turn off the water at the end of a hose for short periods. If you leave it on this way for long periods you are stressing the hose which could lead to a ruptured hose when you are not around. This could lead to a waste of water or to water damage if the hose sprays on something.Furthermore, do I need to disconnect my hose in the winter? Traditional wisdom states that garden hoses should be disconnected from the outdoor water valve in the winter to prevent freezing of water in the pipes inside the house resulting in bursting of those pipes. In other winters (even colder winters), when the hose was not left attached, the pipe had not split. Herein, why does my garden hose keeps bursting? If you increase that pressure by installing a pump that is too powerful, or by building your water tower too high, then the hose will burst. The water doesn’t keep flowing into the hose. It fills the hose up and then stops. No more water gets into the hose until you open the nozzle and let it flow out.Should I leave outside faucets dripping?Drip outside faucets 24 hours a day (5 drops per minute). This is not necessary unless temperatures are expected to be 28 degrees or below for at least 4 hours. (Be sure to turn off the faucets after the threat of freezing weather.) Water softeners should be drained and protected from freezing temperatures.