Stop the discharge through the model's identified bypass or supply isolation if it is safely accessible. Do not restart regeneration or push the hose into the drain. GE GXSF30V instructions require a secured valve-drain hose and distinguish it from the gravity overflow hose; reconnection must preserve the correct routing and air gap.
Identify the detached hose
The GE GXSF30V installation instructions distinguish two lines: the valve's regeneration drain and the brine tank's gravity overflow hose. The valve-drain hose is secured to prevent whipping during regeneration. The overflow hose has its own routing and must not be joined to the valve drain hose.
A detached line at the control valve, a loose endpoint at the receiving drain and a separated tank-overflow hose require different repairs. A loose overflow hose may also mean the brine tank is overflowing; securing the hose alone would not correct that fault.
Do not make a temporary direct drain connection
Do not insert the hose into wastewater, tape the receiving opening closed around it or combine both hoses to make one easier-to-secure outlet. GE specifies an open air gap for its drainage arrangement. The Fleck 5600SXT Downflow installation guidance separately requires an air gap at the drain connection too.
Those requirements are model instructions within an installation that must also meet local rules. They do not establish one universal hose diameter, fastening method or gap size for every system.
If the receiving drain was rising before the hose came loose, use the regeneration drain-backup guide. Reattaching the line and forcing another cycle can repeat the spill if the receiving drain remains restricted.
What needs checking before restart
Have the service provider inspect the correct adapter and restraint, hose condition, route and receiving drain. Crushed, split or kinked tubing and a damaged fitting should be addressed through the approved parts and installation procedure, not concealed by tape.
Record whether the flow was a normal progressing recharge or continuous drainage in the service state. If the tank level is contained but unfamiliar, use the brine-level guide rather than forcing a refill.
Keep cleanup separate from the repair
A water spill is different from sewage backing up through the receiving drain. If sewage is present, keep children and pets away and use appropriate public-health cleanup guidance. Washington Department of Health warns about exposure during sewage-spill cleanup. Do not enter a wet electrical area to reach a plug or controller.
Restart only after the correct hose functions, secured endpoint, open gap and receiving-drain performance are checked. The existing softener installation guide explains the wider plumbing arrangement; a detached hose needs its own fault and restraint assessment.