Discontinued-See Extended Desc.

This listing covers the Fleck 1650 Brine Line Flow Control rated at 0.25 gallons per minute (FL60010-25), a refill-metering component associated with valve model 2900S. The brine line flow control regulates the rate at which water refills the brine tank after regeneration, ensuring the correct amount of water is added to dissolve salt for the next cycle. It is a small precision part with an outsized effect on how efficiently the softener runs.

This 0.25 GPM version has been discontinued. The current replacement is FL60011-25. Order under that number to obtain the supported part at the same 0.25 GPM flow rating so refill volume stays correct for your system.

• Brine line flow control, 0.25 GPM rating
• Meters brine tank refill water for accurate brine preparation
• Associated with the Fleck 1650 brine valve and valve model 2900S
• Discontinued; current equivalent is FL60011-25
• Very light component (about 0.01 lbs)
• Critical to correct salt usage and softening consistency

The role of the BLFC

The brine line flow control, or BLFC, is a precision restrictor that governs refill volume by limiting flow over the timed refill period set in the controller. Together, the flow rate and the refill time determine exactly how many gallons of water enter the salt tank, and that water volume sets how much brine will be available for the next regeneration. Its rating must match the system's design for the math to work out.

If the rate is too high or the orifice has eroded, the tank over-fills and wastes salt; if it is clogged or undersized, the next brine draw is starved and regeneration weakens, leaving harder water. The 0.25 GPM rating here suits smaller systems with modest refill requirements. When a BLFC clogs with sediment, erodes over time, or goes missing during service, the symptom is often inconsistent salt usage or softness that the homeowner can't explain.

Because FL60010-25 is discontinued, order the current FL60011-25 at the matching 0.25 GPM rate to preserve correct refill behavior. Bypass the valve and relieve pressure before servicing the brine line, and inspect the fitting and screen for debris while you have it apart.