1. Introduction
This manual provides essential information for the safe and effective use of your Tool Daily Pressure Washer Adapter Set. This set is designed to facilitate quick and secure connections between various components of your pressure washing system, including hoses, pumps, and guns. Please read these instructions thoroughly before installation and operation.
2. Safety Information
- Always wear appropriate personal protective equipment, including eye protection, when operating a pressure washer.
- Ensure all connections are tight and secure before starting the pressure washer to prevent leaks and accidental disconnections.
- Never point a pressure washer gun at people, animals, or electrical equipment.
- Depressurize the system before disconnecting any fittings or accessories.
- Important Compatibility Note: The M22 14mm female fitting in this set has a 14mm inside plug. If your pressure washer requires a 15mm fitting, using this adapter will cause leakage. This set is NOT FIT for electric pressure washers from brands such as Sun Joe, Campbell, MI-T-M, AR Blue, Stanley, Cleanforce, Simoniz, or Excell if they require a 15mm M22 fitting. Verify your equipment's specifications before use.
3. Package Contents
Your Tool Daily Pressure Washer Adapter Set includes the following 9 brass pieces:
- 2 x Metric M22-14 Female to 3/8'' Plug
- 2 x 3/8'' Quick Disconnect to M22 14mm Male
- 2 x 3/4'' Female to 1/2'' Quick Connect
- 2 x 1/2'' Plug to 3/4'' Male
- 1 x M22 14mm Male to M22 14mm Male

Image 3.1: All 9 brass adapters included in the set.
4. Setup & Installation
This section details how to connect the various adapters for your pressure washing needs. Always ensure threads are clean and O-rings are properly seated before making connections.
4.1 Connection Diagram Overview

Image 4.1.1: General connection diagram for pressure washer components.
4.2 Connecting Pressure Washer Hose to Gun/Pump
Use the Metric M22-14 female to 3/8'' plug and the 3/8'' quick disconnect to M22 14mm male to quickly connect your pressure washer hose to the pump outlet or spray gun inlet.
- Thread the M22-14 female end of the adapter onto the M22 male outlet of your pressure washer pump or the M22 male inlet of your spray gun.
- Insert the 3/8'' plug end of the adapter into the 3/8'' quick disconnect fitting on your pressure washer hose.
- To connect the hose to the gun, thread the M22 14mm male end of the quick disconnect adapter onto the pressure washer gun's M22 female inlet.

Image 4.2.1: M22 14mm female to 3/8 inch plug (top) and 3/8 inch quick disconnect to M22 14mm male (bottom).

Image 4.2.2: Connecting the pressure washer pump to the pressure washer hose.

Image 4.2.3: Connecting the pressure washer hose to the spray gun.
4.3 Connecting Garden Hose to Pressure Washer Pump
Utilize the 3/4'' female to 1/2'' quick connect and the 1/2'' plug to 3/4'' male to connect your standard garden hose to the water inlet of your pressure washer pump.
- Thread the 3/4'' female end of the quick connect adapter onto your garden hose.
- Thread the 3/4'' male end of the plug adapter into the water inlet of your pressure washer pump.
- Connect the 1/2'' quick connect fitting from the garden hose to the 1/2'' plug on the pump inlet.

Image 4.3.1: 3/4 inch female to 1/2 inch quick connect (left) and 1/2 inch plug to 3/4 inch male (right).

Image 4.3.2: Connecting the garden hose to the pressure washer pump.
4.4 Connecting Two Pressure Washer Hoses
The M22 14mm male to M22 14mm male adapter is used to connect two pressure washer hoses with M22 female fittings, effectively extending your reach.
- Thread one end of the M22 14mm male to M22 14mm male adapter into the M22 female fitting of the first pressure washer hose.
- Thread the other end of the adapter into the M22 female fitting of the second pressure washer hose.

Image 4.4.1: M22 14mm male to M22 14mm male adapter.

Image 4.4.2: Connecting two pressure washer hoses for extended reach.
5. Operating Instructions
- After making all necessary connections, ensure they are hand-tightened securely.
- Before starting the pressure washer, turn on the water supply to allow water to flow through the system and purge any air. This helps prevent damage to the pump.
- Once the system is primed, start your pressure washer according to its manufacturer's instructions.
- Always check for leaks at all connection points during initial operation. If leaks occur, depressurize the system and re-tighten or inspect the O-rings.
- To disconnect, turn off the pressure washer and water supply, then depressurize the system by squeezing the spray gun trigger. Once depressurized, quick-connect fittings can be easily separated.
6. Maintenance
- Cleaning: Regularly clean the threads of all adapters and fittings to remove dirt, debris, or sealant residue.
- O-Rings: Inspect O-rings for wear, cracks, or damage. Replace worn O-rings promptly to prevent leaks. The set includes replacement rubber washers.
- Lubrication: A small amount of silicone grease can be applied to O-rings to prolong their life and ensure smooth connections.
- Storage: Store adapters in a clean, dry place when not in use to prevent corrosion and damage.
7. Troubleshooting
7.1 Leaks at Connections
- Cause: Loose connection, damaged O-ring, incorrect fitting size (e.g., 15mm pressure washer with 14mm M22 fitting).
- Solution: Depressurize the system. Tighten connections firmly by hand. Inspect and replace O-rings if damaged. Verify that your pressure washer's M22 fitting is 14mm, not 15mm.
7.2 Difficulty Connecting/Disconnecting
- Cause: Dirt or debris in the fitting, cross-threading, pressure in the system.
- Solution: Ensure the system is fully depressurized. Clean fittings thoroughly. Align threads carefully before tightening. Do not force connections.
8. Specifications
| Feature | Specification |
|---|---|
| Material | Brass |
| Exterior Finish | Brass |
| Fastener Size | M22 |
| Item Weight | 1.4 Pounds |
| Number of Pieces | 9 |
| Working Pressure | Rated to 5000 PSI |
9. Warranty & Support
For warranty information or technical support, please refer to the product packaging or contact Tool Daily customer service directly. Keep your purchase receipt for any warranty claims.





