Bypassing - Pentair Autotrol 255 Installer Manual

5.7.

Bypassing

A bypass valve system should be installed on all water conditioning systems. Bypass valves isolate the
softener from the water system and allow unconditioned water to be used. Service or routine
maintenance procedures may also require that the system is bypassed.
In

Caution
Do not solder pipes with lead-based solder.
Caution
Do not use tools to tighten plastic fittings. Over time, stress may break the connections.
When the 256 bypass valve is used, only hand tighten the plastic nuts.
Caution
Do not use petroleum grease on gaskets when connecting bypass plumbing. Use only 100%
silicone grease products when installing any plastic valve. Non-silicone grease may cause
plastic components to fail over time.
Ref. MKT-IM-021 / A - 20.02.2019
Normal operation
Out
Installer Manual 255/LOGIX 742-762-764 - Installation
In Bypass
In Out
39 / 92