What it changes
The listed pass doubles the amount of water the tool can carry. That can make source routes smoother, especially once the factory needs more water than short trips can provide.
- More water per trip.
- Less repeated hauling.
- Better value when routes get longer.
Free route first
Try bucket upgrades, early droppers, farm timing, and coolant first. If those solve the bottleneck, the pass is convenience rather than a must-buy.
- Buy early droppers.
- Upgrade buckets in-game.
- Use coolant when water pressure rises.
When it is worth considering
Consider it when you like the game, water trips are the slowest part of your route, and you are already using the free upgrade loop correctly.
- You play repeated runs.
- Your base dries out between trips.
- Longer sources are now part of the route.