Discontinued-See Extended Desc.

The Fleck 1650 Brine Line Flow Control at 0.5 gallons per minute (FL60010-50) is a refill-metering component used with the 1650 brine valve on systems including valve model 2900S. It controls how fast water enters the brine tank during the refill step, setting the volume of water that will dissolve salt to make brine for the next regeneration. Though tiny, it directly governs salt efficiency and softening consistency.

This 0.5 GPM version has been discontinued and is replaced by FL60011-50. Order the current number to get the supported part at the matching 0.5 GPM flow rate so refill volume remains correct for your system.

Component summary

• Brine line flow control rated at 0.5 GPM
• Meters brine tank refill water for proper brine concentration
• For the Fleck 1650 brine valve, valve model 2900S
• Discontinued; replaced by current part FL60011-50
• Minimal weight (about 0.02 lbs)
• A common cause of salt waste or weak softening when worn

A brine line flow control, or BLFC, is a small but precise restrictor that, combined with the controller's timed refill, determines exactly how much water is added to the salt tank. Because the controller sets the refill time while the BLFC sets the rate, the two work together to fix the refill volume, which in turn sets how much brine is available for the next cycle. At 0.5 GPM, this rating suits systems that need a faster refill than the 0.25 GPM version provides.

An accurate BLFC is essential for efficient regeneration. An eroded orifice lets in too much water and wastes salt, while a clogged one starves the next brine draw and leaves harder water in the home. Sediment, mineral buildup, and ordinary wear are all common reasons a BLFC drifts out of spec or fails outright, and the resulting symptoms are easy to misattribute.

Because FL60010-50 is no longer produced, order the current FL60011-50 at the same 0.5 GPM rate to keep refill behavior correct. Always place the valve in bypass and relieve pressure before opening the brine line for service, and check the fitting and any screen for debris while you have access.