Drain Water Per Click

Pump Upgrade Calculator — is the upgrade worth it?

Pick your current pump and the pump you're eyeing. The calculator shows the multiplier jump, what it costs, how much extra Water per click you gain, and — most importantly — how many clicks it takes to pay the upgrade back.

From the in-game counter — this anchors the estimate. (reads as 1)

On mobile most players tap 4–7 times per second.

Multiplier now

1

Multiplier after upgrade

5

Multiplier increase

400%

Upgrade cost

Extra Water per click

4

Payback clicks

Payback time

Assumptions: Water-per-click scales linearly with the pump multiplier and the upgrade pays for itself once the accumulated extra Water equals its cost. The game does not document hidden mechanics, so this is a planning estimate anchored to the per-click value you enter.

How this tool works

  1. Select your current pump (what's equipped right now).
  2. Select the target pump you're considering.
  3. Enter your Water per click with the current pump — this anchors the estimate to your real account.
  4. Set your clicks per second to convert payback clicks into real time.
  5. The verdict panel summarizes whether the jump is a doubling, a solid mid-size gain, or a small one.

FAQ

How is payback time calculated?

Your extra Water per click (new pump minus current pump) earns back the upgrade cost. Payback clicks = cost ÷ extra per click. At 5 clicks/second, a 300-Water Lucky Clover upgrade from Water Pump Plus pays back in seconds — a Dianeti jump takes far longer by design.

Should I always buy the upgrade as soon as I can afford it?

In this game, usually yes — community guides recommend buying the next affordable pump rather than hoarding Water, because pumps are the biggest power multiplier. The calculator's payback number tells you how quickly each jump recovers its cost so you can judge big jumps yourself.

Why do some pumps show missing values?

Unicorn Fantasy and Cake are Robux-exclusive — no Water price is published, so cost-based payback can't be computed. We show what's verified instead of inventing prices.