Plan for Service
Unions or snap fittings save hours when a valve body fails. Leave hand space—even if it costs a bigger box.
Label Everything
Zone numbers, flow direction, and water source—future you will thank you.
Drainage
Pea gravel and weep holes prevent soup boxes that corrode solenoids.
Winterization Loops
Orient ports so blowouts actually clear all ports—avoid air traps.
Frequently Asked Questions
How tight is too tight in a box?
If you cannot swap a valve without cutting, redesign.
Should manifolds be grouped by hydrozone?
Yes—simplifies scheduling and repairs.
