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30 Floors Up Riser Valve: How to Open the North Tank Water

Page updated Nov 12, 2026 (today) · 4,823 playing now

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Short version: The riser valve is a red wheel on the blue pipes in the corridor. On Day 5 its hint reads "A seized red wheel valve on the risers - it needs a wrench." Carry the Adjustable Wrench to it and turn the wheel, and by Day 6 the message is "The riser valve is open - the north tank feeds the taps upstairs." The Day 6 guide note is called "The north tank reserve".

Riser Valve (North Tank) at a glance

What it looks likeRed wheel on two blue riser pipes with a pressure gauge
Before"A seized red wheel valve on the risers - it needs a wrench" (Day 5, 06:15)
ToolAdjustable Wrench (TOOL, Damage 16, Reach 4.5)
After"The riser valve is open - the north tank feeds the taps upstairs" (Day 6, 07:55)
Guide noteDay 6: "The north tank reserve"
Day 6 objectiveClouds are building: rain is coming, open containers on the balcony brackets will collect it

How to open it

  • Pick up the Adjustable Wrench from the latched toolbox (Day 2).
  • Find the riser pipes with the red wheel and gauge (the footage shows them on Day 5 and again on Day 6).
  • With the wrench in hand, turn the wheel; a round turn arrow shows around the pipe.
  • Read the message: "The riser valve is open - the north tank feeds the taps upstairs."

Why open it

On Day 2 the objective is "Fill every container before the taps stop", so the taps run out early in the run. Once the riser valve is open, the game says the north tank feeds the taps upstairs. The water-use side (filling, treating, rain) is on the food and water page.

The later days mention the same valve: Day 31 to 32 sends you to the management office on floor 27 to open the north tank's riser valve (a wrench) before cutting a chain on the fire doors. See the later days page.

Tips

FAQ

How do you open the riser valve in 30 Floors Up?

Take the Adjustable Wrench to the red wheel valve on the riser pipes and turn it. The game then says the riser valve is open and the north tank feeds the taps upstairs.

What does the north tank do in 30 Floors Up?

After the riser valve is open, the message says the north tank feeds the taps upstairs, and we saw this on the day the objective turned to rain.

What day do you open the riser valve?

We saw it seized on Day 5 and open on Day 6. We haven't checked whether earlier days allow it.

Where is the riser valve?

On the blue riser pipes in a corridor with a red wheel and a gauge. We didn't see the floor number on screen.

More 30 Floors Up pages

Sources

Checked Nov 12, 2026. Community wikis are edited by players, so numbers marked “per” one wiki may change after an update.