---
title: "Inventory and chemical purchasing, Route Operations 101"
url: https://poolroutemarketplace.com/learn/route-operations-101/inventory-and-purchasing
description: "Chemical and parts inventory is the second-largest operating cost (behind labor) for most routes. Small purchasing improvements compound fast.\n\n**The big four c"
lang: en
---

# Inventory and chemical purchasing

Lesson 5 of 8 · 7 min read

Chemical and parts inventory is the second-largest operating cost (behind labor) for most routes. Small purchasing improvements compound fast.

**The big four chemicals.** Liquid chlorine, muriatic acid, cyanuric acid (stabilizer), calcium hypochlorite (cal-hypo) or trichlor tablets. Salt for SWG pools. Algaecides as needed. Buy in bulk where storage allows.

**Per-stop chemical cost benchmarks.** Residential weekly: $4–$9 per pool average, varies 2x with pool size and water condition. If yours runs over $10/pool, look at: dosing accuracy, chlorine drift in storage, over-shocking, and brand premium.

**Volume tiers.** Most chemical distributors have clear price breaks at 55-gallon, 1-pallet, and 1-truckload tiers. Once you're past 100 stops, a single trip to a distributor (vs. weekly pool-store runs) saves $0.50–$1.50 per pool.

**Storage that doesn't burn down.** Store acids and oxidizers (chlorine, cal-hypo) in separate, ventilated areas. Keep SDS sheets posted. Concrete floor, no organic materials nearby. A small chemical fire from improperly stored cal-hypo and chlorine can total a shop.

**Parts inventory.** Stock the 80/20: O-rings, gaskets, tabs, salt cell brushes, common pump impellers, common cartridge filter sizes. Do NOT stock heaters, controllers, complete pumps, too expensive and rarely needed; order on demand.

**Vendor relationships.** A primary distributor (chemicals) and a secondary (parts) get you most of what you need. Build a personal relationship with at least one rep, same-day deliveries during a problem week are worth far more than 2% off.

## Quick check

\1. Chemical cost benchmark per stop weekly?

\2. Why store acids and oxidizers separately?

\3. What should you NOT keep on the shelf?

\4. Per-stop chemical cost benchmark?

\5. Why store acids and oxidizers separately?

\6. Order the inventory-control steps.

1. 1 Set par levels by chemical & part
2. 2 Negotiate volume pricing quarterly
3. 3 Weekly count & reorder
4. 4 Track usage per route

Earn 63 points

Mark this lesson complete

← Previous lesson: https://poolroutemarketplace.com/learn/route-operations-101/customer-communication
Next lesson →: https://poolroutemarketplace.com/learn/route-operations-101/preventive-equipment-maintenance

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