WL400 Manual Page 56 – Revision: 10-23-20199. Disconnect Cold Line from top of Cold Tank.10. Remove Drain Caps and Plug from Cold Water Tank Drain on the back ofthe WL400 Water Treatment System.11. Open Bladder Tank.12. After unit has finished draining, replace Plug and Drain Caps.13. Reconnect tubing to Cold Tank.14. Close lid, close locks and replace screws in Top Cover.
