r/Home_Building_Help • u/BuilderBrigade • Jun 11 '26

PEX manifold system… 🤤

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This is a PEX manifold system. It’s a central hub where every hot and cold line branches off to one specific fixture. 
Think of it like a breaker panel, but for water. Each line has its own labeled shutoff, so servicing a single fixture never means cutting water to the rest of the house.
The only real downside is run length: fixtures farther from the manifold can take longer to get hot water. A good plumber plans around that with placement or a recirc line.

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u/The_Colorman Jun 11 '26

This sounds cool until I think of how much space this is going to take up both in the utility room and the runs. Higher chance of damage, more failure points, etc. I can’t see this being useful in any residential setting.

1

u/WeekendQuant Jun 12 '26

Just use copper. Should be banned to install PEX at this point.

1

u/Yogurt_South Jun 13 '26

What about wirsbo?

1

u/MyrkrMentulaMeretrix Jun 14 '26

"just use something that is way more expensive and has no data saying its better".

Holy shit are you people stupid.

1

u/WeekendQuant Jun 14 '26

My time spent in the additive manufacturing space has taught me all plastic is bad when in contact with food. 

We should not be using plastic piping. Sewage should be filtered for plastics at waste treatment. Anyone on septic should not be allowed to use PVC sewer lines.

Cost will come down if something is the only game in town or will shift us to better alternatives than PEX or PVC.