Water Softener & Filtration Route
Monthly salt delivery + filter swaps = the world's most boring recurring income
Water softener and filtration route operators install and service residential water treatment systems — softeners, reverse osmosis units, whole-home filters — and earn recurring revenue from monthly salt delivery, filter replacement, and equipment rental fees. The model is almost identical to a propane route: install the equipment, lock in a recurring service contract, and drive the route collecting revenue. Customers almost never cancel — hard water is a daily annoyance and once a softener is installed, going back feels barbaric. A 200-account route generating $50–$100/month per account produces $120K–$240K in recurring annual revenue before any new installs.
Avg Revenue
$300K
Profit Margin
38%
Acquisition Multiple
2x - 3.5x
Startup Cost
$40K - $150K
Difficulty
2/5
How It Works
Operators install water softeners and filtration systems (cost: $500–$2,000 per unit) at homes either by cash sale or as a rental/lease ($25–$60/month for 5–7 years). Ongoing revenue comes from: (1) monthly salt bag delivery ($30–$60/delivery), (2) quarterly or annual filter replacements ($80–$250), (3) equipment rental fees, and (4) occasional service calls. The route truck carries inventory and services multiple stops daily. New customers are acquired through door-to-door in hard-water markets, real estate partnerships, and water quality tests offered at community events. Gross margins on products (salt, filters) run 50–65%.
Revenue Range
Pros
- +Extremely low monthly churn — water quality is a daily necessity
- +Rental equipment model creates guaranteed recurring revenue even when customers don't order salt
- +High gross margins on consumables (salt at 50–65% gross)
- +Low competition — market is served by small regional operators, not national chains
- +Defensible route geography once accounts are established
Cons
- -Salt is heavy — physical route work; vehicle maintenance and fuel matter
- -Hard water markets are geographically concentrated (Midwest, Southwest, Southeast)
- -Equipment installation requires plumbing knowledge or subcontracted labor
- -Initial equipment inventory investment is capital-intensive to scale
Best For
Route operators seeking stable recurring income; investors acquiring account bases in hard-water regions; buyers coming from vending or propane route backgrounds
Operating Costs
Costs: salt/filter COGS (~35% of recurring revenue), vehicle expenses, equipment maintenance, and a small admin overhead. Net margins of 35–42% are achievable on mature routes. Equipment capital is the biggest growth investment — each new rental install represents ~$1,500 in upfront hardware that pays back in 18–30 months of rental fees.
Where to Buy
Find water treatment and route businesses for sale
Water Quality Association — industry directory and member classifieds for route acquisitions
Browse water treatment service businesses by state and revenue
Quick Facts
- Category
- route
- Difficulty
- 2/5
- Acquisition Price
- $600K - $1.1M
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Water Softener & Filtration Route
$300K/yr • 38% margins • 2x–3.5x multiple
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