Raft Water & Purification Planner
Configure your crew size, difficulty, and session length to see exactly how many purifiers you need and how much Plank fuel Simple Purifiers will consume.
Session Settings
2
18
3 h
1h8h
Recommendations
Thirst Refills/Hour
5
per player
Simple Purifiers
2
recommended
Planks / Hour
48
fuel consumed
Advanced Purifiers
2
no fuel cost
Advanced break-even:
Each Advanced Purifier costs ~Plastic×15, Copper Ingot×4, Circuit Board×1. At 2 player(s) in Normal mode, you'd need 2 Simple Purifiers using 144 Planks over 3 hour(s). Advanced Purifiers pay for themselves within your session length in Plank savings.
Simple vs Advanced Comparison
| Attribute | Simple Purifier | Advanced Purifier |
|---|---|---|
| Fuel Required | Plank x2 per cycle | None (solar powered) |
| Output Rate | ~1 cup / minute | ~2 cups / minute |
| Craft Cost | Plank x6, Rope x4, Scrap x2 | Plastic x15, Copper Ingot x4, Circuit Board x1 |
| Maintenance | Refuel with Planks regularly | Zero — set and forget |
| Best For | Early game, small crews | 3+ players or long sessions |
| Tip | Build 2 early — alternate fuel | One per 3 players is sufficient |
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