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#1 Yesterday 17:24:12
- kbd512
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- Registered: 2015-01-02
- Posts: 8,588
Plumbing Systems Forum Notes
I created this forum to discuss the systems that distribute consumable gases and liquids within spacecraft, space stations, and planetary bases. As one of our members noted, the design and thought put into infrastructure used to distribute or circulate the air and water astronauts and colonists depend upon to keep them alive is a very important but often overlooked part of a successful overall spacecraft, space station, or planetary base design.
Forum members are encouraged to submit their ideas about how to best accomplish this task and to evaluate and comment on design ideas submitted by fellow forum members. To the extent possible, please ensure the topics, data, and systems discussed are germane to the task. Strictly speaking, this would be considered part of the life support systems, but most of us think of CO2 scrubbers and waste water recycling units as the actual life support equipment, whereas the way in which systems are designed to move fresh air, contaminated air, fresh water, waste water and sewage, and other vital gases is almost an afterthought.
The overall design, configuration, and features put into the distribution/movement of fresh water could either make the entire system more prone to leaks or catastrophic failures and flooding, or it could be designed defensively so the uncontrolled water losses are far less likely to occur. The handling of waste streams, especially sewage, is of particularly high importance to crew health.
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#2 Today 14:50:46
- SpaceNut
- Administrator
- From: New Hampshire
- Registered: 2004-07-22
- Posts: 30,883
Re: Plumbing Systems Forum Notes
AI Overview
Plumbing in outer space (such as on the International Space Station - thePlumber.com) replaces gravity with pumps, fans, and capillary physics to move and recycle water, air, and waste.
Key Mechanics of Space Plumbing
• No Gravity: Standard gravity-fed drains and open-air faucets do not work in free fall; instead, pressurized systems and suction airflow move fluids and solids.
• Materials: Pipes are built from lightweight, corrosion-resistant, and microbe-resistant titanium, stainless steel, or Teflon wrapped in metal mesh rather than heavy residential copper or PVC.
• Water Recycling: Life-support systems purify crew perspiration and urine into sterile drinking water via closed-loop distillation and filtration modules (maintained during tasks like Orbital plumbing maintenance aboard the International Space Station).
• Waste Management: Space toilets use a vacuum system combined with spinning air-water separators and specialized funnels to pull waste away without relying on a flush tank.
• Capillary Fluidics: Modern low-gravity research leverages surface tension and wedge-shaped open channels to passively transport liquids and separate gas bubbles without mechanical pumps.
If you are designing a space-themed project, compact terrestrial system, or studying aerospace engineering, tell me:
• What are the physical dimensions or space constraints you are working with?
• Are you designing for closed-loop recycling or a simpler drainage/storage model?
• What is the intended aesthetic or application (e.g., a sci-fi mockup, tiny home/off-grid build, or technical report)?[
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