It does not matter whether you install the water inlet or outlet first.

Remove the water hose nut from the spindle and pass the water hose through.

Insert the tip of the water hose into the spindle's water inlet.

Tip: If the water hose is difficult to insert, you may use a lighter or heat blower to soften the tip. However, exercise caution to avoid damaging the hose. After warming it, carefully insert it into the spindle's water inlet.

Proceed with caution and do this at your own risk, as the plastic may become hot and cause burns. Use a towel or cloth to handle the warmed hose safely.

Slide the water hose nut down and securely tighten it onto the spindle inlet thread.

Repeat the previous steps and install the water hose outlet.