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This is the #1 reason for **low shower pressure from roof tank** - and fix costs just 1 extra pipe!
**LEFT - WRONG - No Vent Pipe = Slow Flow ❌**
Tank on roof, pipe goes directly down to shower. No air entry.
What happens:
- Water tries to go down, but air gets trapped inside pipe - like putting finger on top of a straw, water won’t fall.
- Pipe creates air lock / vacuum. Water has to fight air to come out.
- Result: Weak, slow shower, even though tank is full.
**RIGHT - CORRECT - Extra Vent Pipe = Strong Flow ✅**
One extra vertical pipe added, higher than tank top, open to air. See labels:
- **Extra Vent Pipe** - Connects to main down pipe
- **Air Escape** - Blue arrows UP from tank and vent
How it fixes:
- When water goes down to shower, air from this vent pipe goes IN behind water, pushing it down.
- No air lock. Water flows freely with gravity.
- Also, air trapped in tank escapes through small pipe on tank top.
Result: Same tank, same height, but **3x stronger flow**.
**Installation Rules:**
1. Vent pipe diameter = same as main pipe (1 inch)
2. Vent height = 1 foot higher than tank lid
3. Top of vent = open, with U-bend to stop dust/birds
4. Connect vent as close to tank down-takeoff as possible
Cost: 10 feet pipe + elbow = very cheap, but shower feels like pressure pump!
Try this before buying a pump motor.
#plumbing #waterpressure #watertankThis is the #1 reason for **low shower pressure from roof tank** - and fix costs just 1 extra pipe! **LEFT - WRONG - No Vent Pipe = Slow Flow ❌** Tank on roof, pipe goes directly down to shower. No air entry. What happens: - Water tries to go down, but air gets trapped inside pipe - like putting finger on top of a straw, water won’t fall. - Pipe creates air lock / vacuum. Water has to fight air to come out. - Result: Weak, slow shower, even though tank is full. **RIGHT - CORRECT - Extra Vent Pipe = Strong Flow ✅** One extra vertical pipe added, higher than tank top, open to air. See labels: - **Extra Vent Pipe** - Connects to main down pipe - **Air Escape** - Blue arrows UP from tank and vent How it fixes: - When water goes down to shower, air from this vent pipe goes IN behind water, pushing it down. - No air lock. Water flows freely with gravity. - Also, air trapped in tank escapes through small pipe on tank top. Result: Same tank, same height, but **3x stronger flow**. **Installation Rules:** 1. Vent pipe diameter = same as main pipe (1 inch) 2. Vent height = 1 foot higher than tank lid 3. Top of vent = open, with U-bend to stop dust/birds 4. Connect vent as close to tank down-takeoff as possible Cost: 10 feet pipe + elbow = very cheap, but shower feels like pressure pump! Try this before buying a pump motor. #plumbing #waterpressure #watertank
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ould you live comfortably in 500 square feet? This thoughtfully designed tiny house plan maximizes functionality with an open living area, private bedroom, full bathroom, and organized utility spaces.ould you live comfortably in 500 square feet? This thoughtfully designed tiny house plan maximizes functionality with an open living area, private bedroom, full bathroom, and organized utility spaces.
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