• If you use hot water, ABS/PETG is required - water temperature is below 80 degrees Celsius.
• If printing with PLA, the water temperature is below 55 degrees C.
• Do not put support inside the handle tube
• Best print at layer height = 0.12mm
• Just wrap with thread sealing tape, washers are not really necessary

Print setting recommended :

• material : ABS / PETG
• layer height : 0.12mm
• wall : 3
• Infill : Gyroid 10%