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Complete-System Cost Worksheet
Compare two fully specified options for the same area, loading, drainage duty and service period. Enter totals in one currency and price basis; a blank field means missing information, while zero means you have deliberately excluded that cost.
| Cost category | Option A total | Option B total |
|---|---|---|
| Product supply | ||
| Freight and handling | ||
| Excavation and disposal | ||
| Supporting layers and protection | ||
| Drainage fittings and access | ||
| Installation and inspection | ||
| Maintenance over the selected period |
Complete every field to compare totals.
How to use the result
- This adds your entered amounts; it is not a market quotation or a product savings forecast.
- For discounted lifecycle comparisons, calculate both options on the same basis before entering amounts.
- Keep taxes, contingency and replacement allowances consistent and document what each category includes.
The example uses arbitrary cost units only. Method inputs informed by the STEP lifecycle-cost framework.
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AQUA Rain Water · Inputs stay in this page. Nothing is submitted automatically.
