HouseChalk
Manifold system
A manifold system is a central plumbing hub with individual supply lines running directly to each fixture, like a breaker panel for water.
Why it matters
It delivers more consistent water pressure across all fixtures and lets you shut off water to a single fixture without affecting others.
Where people get this wrong
Manifold systems use more tubing than trunk-and-branch layouts but have fewer fittings hidden in walls, reducing leak risk.
Real-world example
The plumber installs a manifold in the utility room. Each bathroom faucet, toilet, and shower has its own dedicated PEX line with its own shutoff valve at the manifold.
Where this hits your build
This comes up during rough-in and final fixture installation. Accessibility for future repairs matters as much as the initial install.
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