Leaking bypass valve or valve-to-plumbing connection

Bypass leaks are usually worn O-rings in the bypass body or yoke connection, a cracked plastic bypass, or strain from misaligned plumbing. Repair is O-ring replacement or bypass replacement.

Single source ~30 min easyBrands: Clack, Fleck, All

Before you start

Shut the main or the bypass inlet and relieve pressure before taking the bypass apart

Diagnostic steps

Unlock all 3 steps with expected values

Full library + AI assistant for $34.90, one time.

Get lifetime access

OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

More water softeners & filters guides

Guide · Water Softener

Water tastes salty after the softener regenerates

Softened water should not taste salty. A salty taste means brine was not fully drawn and rinsed out of the resin: clogged injector or brine line, restricted drain line or drain flow control, low supply pressure during regeneration, or a regeneration interrupted by a power or pressure loss.

5 steps ~60 minmoderate

Guide · Water Softener

Water softener uses too much salt or regenerates every night

Excess salt use is almost always a settings problem: hardness programmed too high, a timer set to regenerate every day, wrong capacity or salt dose for the household, or a lost program. Mechanical causes include a leaking brine valve, iron-fouled resin and a brine tank that overfills.

4 steps ~40 mineasy

Guide · Water Softener

Softener regenerates at the wrong time (often after a power outage)

Most timer and metered controls schedule regeneration by the clock, typically in the middle of the night. After an outage the clock can be wrong or reset, so regenerations happen when people are using water. The softener still softens, but the clock and settings need checking.

4 steps ~20 mineasy