Support

Questions, bugs and anything that looks wrong

Playing

How do I play?

Tap a pipe to turn it a quarter turn. Join every source to an outlet with no leaks. A red dot marks water escaping from an open end. The full rules are in the app under the gear icon ▸ How to play.

What are the framed blocks with a paddle?

That's a water wheel. Get water to every paddle piece and the whole framed block swings round, a quarter or half turn as its corner badge shows, carrying its pipes with it. Cut the water off and it swings back.

What are the framed blocks with a dashed border?

That's a turntable. Tap any tile in it and the whole block spins a quarter turn, carrying its pipes with it. Keep tapping until the water can get through; Undo spins it back.

How do the other pieces work?

The first time a level has a new kind of piece, a card shows it working before you start. To see any of them again, open the gear icon ▸ How to play.

Is every level solvable?

Yes. Every one of the 1,000 levels has exactly one solution, checked by the generator before it ships. You never have to guess. If a level ever looks impossible, please write — that would be a bug worth fixing.

I'm stuck.

A hint turns one piece into its correct position. You get some free, can buy more with the stars you earn, or buy a pack. Undo and Restart are at the foot of the screen.

Stars and themes

What are stars for?

Every level pays 100–1,000 stars the first time you solve it, more for solving it in fewer moves. Spend them in the store on hints or on pipe themes.

Why didn't I get stars for replaying a level?

Each level pays once, so levels can't be farmed. A replay can still beat your recorded best score, which is shown on the map.

I bought a theme and want to switch back.

Themes you own can be worn any time from the store. Owning one never expires.

Purchases

I bought Remove Ads but still see ads.

Open the store and tap Restore purchases, making sure you're signed in with the Apple Account you bought it with. If ads persist, write with the date of purchase.

I changed phones. Where did my purchases go?

Tap Restore purchases in the store. Purchases are tied to your Apple Account, not the device.

Can I get a refund?

Refunds are handled by Apple, not by the developer. Use reportaproblem.apple.com.

Progress

Does my progress move between devices?

Yes, through your own iCloud, as long as you're signed in to the same Apple Account and iCloud Drive is on. The furthest progress and best scores win when two devices disagree.

I lost my progress.

Check that you're signed in to the same Apple Account, then reopen the app and give iCloud a moment. If it doesn't come back, write and include roughly how far you had got.

Ads and privacy

When do ads appear?

Not at all for the first 30 levels. After that, a short ad plays between levels every few levels. Remove Ads stops them permanently.

How do I stop data being collected?

Settings ▸ Privacy ▸ Share anonymous usage data turns off the anonymous statistics and crash reports. See the privacy policy for what they contain.

Accessibility

Colours can be told apart without relying on hue: Settings ▸ Symbols on pipes marks each colour with its own shape. Sound and haptics each have their own switch. If something is hard to use, please say so — it's useful to know.