Common signs that a wall or yard hydrant needs replacement parts include:
1. **Leaking Water**: Persistent dripping or water pooling around the hydrant indicates worn-out washers, seals, or a damaged valve seat.
2. **Reduced Water Pressure**: A noticeable drop in water pressure may suggest blockages, corrosion, or internal damage to the hydrant components.
3. **Inability to Shut Off**: If the hydrant continues to flow or drips after being turned off, it may have a faulty valve or worn-out internal parts.
4. **Rust and Corrosion**: Visible rust or corrosion on the hydrant body or handle can weaken the structure and affect functionality, necessitating part replacement.
5. **Stiff or Loose Handle**: Difficulty in turning the handle or excessive looseness can indicate issues with the stem or packing nut, requiring replacement.
6. **Water Discoloration**: Rusty or discolored water can be a sign of internal corrosion or sediment buildup, indicating the need for new parts.
7. **Unusual Noises**: Whistling, banging, or other unusual sounds during operation can point to air in the system or damaged components.
8. **Frozen or Burst Pipes**: In cold climates, if the hydrant freezes or bursts, it may need new parts to restore proper function.
9. **Visible Cracks or Damage**: Any visible cracks or physical damage to the hydrant body or spout can compromise its integrity and require replacement parts.
10. **Age and Wear**: Older hydrants may have parts that have simply worn out over time, necessitating replacement to maintain efficiency and safety.