A quality patio is not just a bunch of stones to walk on; it includes flowers and plants, preferably more than less but it depends on what kind of look you are going for. In order to keep all these plants hydrated, green, and growing you are going to need some way to water them; this is where a watering system comes into play. An often over looked aspect of a watering system is the garden hose fitting.
Garden hose fittings are the components that connect your hose to the water gun or to another hose. They are typically brass garden hose fittings though they can also be found as plastic garden hose fittings or stainless steel garden hose fittings. Most are built with the inside about one inch in diameter because that is the standard width on the end of a hose.
Inside of the hose fitting you will find a rubber washer; this plays an essential part in performing what a fitting is intended to do, allow you to connect the hose to something else while minimizing water leakage; the rubber washer creates a leak proof seal.
Leaking garden hose fittings
If your hose is leaking at the point where it screws into something else then the cause is likely a faulty or damaged fitting. There are generally two different ways that this component can stop working. One is for the rubber washer to become damaged; this is inevitable after a decent amount of use from the hose; the rubber will simply wear down until it can no longer create a water-tight seal.
The other reason your fitting may stop working is because it is no longer round. While working at a garden center I saw fittings that had been run over by trucks on more than a few occasions. If it was not screwed into anything at the time then it would be essentially useless in the future unless it could be carefully bent back into place. If the fitting got run over while attached to another hose then the two hoses were essentially stuck together indefinitely.
Repairing a garden hose fitting
If the fitting is just leaking you may have to do nothing more than replacing the rubber washer. You can pick up a new one at any local hardware store.
If the fitting has been run over then you can attempt to bend it back to normal though there is no guarantee that it is ever going to work well again. If the fitting is made of something soft like aluminum you can try turning it on its side and stepping on it or squeezing it together with two rocks. If the material is something more durable then you can try banging it back to normal with a hammer.
Ideally you will prevent damage in the first place. Good luck and happy gardening.