If you remove the anti-siphon valve, you must replace it if you sell the house, or it will not pass inspection, as I recently discovered.

With anti-siphon/vacuum breaker, turning the water off results in the "shower." This is normal and not a problem except you will likely get a little wet. Once the water is turned off there is no need to drain the hose. There will still be water in the hose but no pressure.

To avoid the "shower" you can hold the hose nozzle open while turning off the water as was described in post #2. Because the nozzle is open there will be no pressure in the hose. Because there is no pressure in the hose there is no water pushing back against the vacuum breaker. Because there is no water pushing back against the vacuum breaker there is nothing to spray out and cause the "shower."

If you notice, all of the faucets in your house discharge water above the rim of the fixture, and they do not have a threaded connection for a hose. Your outside hose bibbs are designed to connect a hose. When you use a hose, there is always the possibility for a negative pressure to develop and cause water to backflow into the house and contaminate the potable water. This is the reason that the plumbing code requires a backflow prevention device on all outside hose bibbs.

In my opinion, the best way to avoid the splashing is to install a second valve, similar to the one shown in Post No. 11. This will prevent splashing and it will not compromise the backflow prevention device.

Splash back preventer
 

I took a Gator Aid bottle with its wide mouth and cut it straight down the middle than cut the bottom off, slide the two pieces as far up as you can and wire tie it in place , it works!

plastic water bottle
 

The gizmo reminded me of a shorty plastic water bottle with the bottom cut off. So mine was free :

Totally agree!

At one time, home inspectors insist on adding them before your house can to sold. :rant-rave:

I use the “hose guppy” I purchased on Amazon. Before finding that I took an empty “Bai” bottle, cut off the bottom so I had half the height of the bottle and put a slit in the neck. It fit over the faucet just fine and I threaded the hose through. It just didn’t look as nice as the hose guppy from Amazon

You are correct

Agree.......................just remove the device.

Same result.

One of the first things I did when we bought the house. I saved it in case we ever sell the house so I can reinstall it. It went in the pile of worthless stuff along with the spark arrestor that came with the Yamaha Golf Cart.

It’s the backflow prevention device that makes this happen. No other device needed. Just keep the hose ON when turning the spigot OFF. If anyone is worries about a lil water spraying about.

The simple solution is to keep your hose gun squeezed as you turn off the the water so there's no pressure in the hose to back up

Back flow
 

Just do a google search as there have been many instances of illnesses and at least one death due to back flow issues.