This article explains how to correctly install and operate the RAINPOINT DZ1S Garden Hose Shut Off Valve and covers the main leakage and storage guidance provided in the user manual.
Installation & Use
Step 1: Connect the Valve to the Faucet
Align the inlet of the DZ1S with the faucet threads.
Gently screw the valve onto the faucet until it is securely tightened.
· Important
Hand-tighten only. Do not use tools.
Using tools may apply excessive force to the connection.
Step 2: Connect the Garden Hose
Connect a compatible garden hose to the outlet of the DZ1S.
Tighten the hose connection securely to help create a leak-free seal.
The outlet is designed for a: Standard 3/4" garden hose
Step 3: Control the Water Flow
Turn on the faucet.
Rotate the Valve Switch to control the water flow.
The switch can be used to:
- Turn the water on
- Turn the water off
- Reduce or increase the water flow
Condition 1: Water leaks between the faucet and valve
Possible Cause
The valve inlet may not be properly aligned with the faucet threads.
What to Do
- Turn off the water.
- Disconnect the DZ1S.
- Check that the valve and faucet threads are properly aligned.
- Reconnect the valve carefully.
- Hand-tighten the connection.
If the threads are correctly aligned but leakage remains:
- Wrap Teflon / PTFE tape around the faucet threads.
- Add a rubber washer to the valve inlet.
- Reconnect the valve.
The manual specifically illustrates the use of Teflon tape and a rubber washer when additional sealing is required.
Condition 2: Water leaks at the hose connection
What to Do
- Turn off the water.
- Check the hose connection.
- Make sure the hose is correctly aligned with the valve outlet.
- Tighten the connection securely by hand.
- Check the sealing washer if necessary.
Condition 3: Water flow is lower than expected
What to Check
Check the position of the Valve Switch.
The DZ1S allows water flow to be regulated, so a partially closed valve will reduce the amount of water reaching the hose.
Rotate the valve toward the more open position as needed.
Frequently Asked Questions
Can the DZ1S completely shut off the water?
Yes.
The Valve Switch can be used to turn the water flow ON or OFF.
Can I adjust the water flow?
Yes.
The DZ1S is designed to regulate water flow between the water source and garden hose.
What size garden hose does the DZ1S fit?
The outlet is designed for: Standard 3/4" garden hoses
What faucet connection does the US version use?
3/4" NH
What faucet connection does the EU version use?
3/4" BSP
What is the working water-pressure range?
The specification lists: 0–20 bar (0–300 PSI)
What is the operating-temperature range?
41°F–140°F (5°C–60°C)
Can I use a wrench or pliers to install the DZ1S?
No.
The manual specifically states: Hand-tighten only. Do not use tools.
What should I do if the valve leaks after installation?
First check that the threads are correctly aligned.
If leakage remains, use:
- PTFE / Teflon tape on the faucet thread
- A rubber washer in the valve inlet
before reconnecting.
Can the DZ1S be used as a faucet extender?
Yes.
The product overview specifically states that the DZ1S can also be used as an outdoor faucet extender.
Cold-Weather Storage
When freezing temperatures are expected:
- Remove the DZ1S from the faucet.
- Allow remaining water to drain.
- Store the valve indoors.
This helps prevent freeze damage.
After-Sales Support
For support, prepare:
- Model number: DZ1S
- Order number
- Description of the issue
- Photo of the faucet/valve connection if leakage is involved
The current manual already uses the updated RAINPOINT contact information:
US Hotline: +1 833 381 5659
DE Hotline: +49 800 182 0576
UK Hotline: +44 20 4628 3036
Email: service@rainpoint.com
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