Water Softener & Filtration Route
Monthly salt delivery + filter swaps = the world's most boring recurring income
Bottom line
Operator-friendly model; diligence should focus on acquisition price.
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.
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%.
BizBite verdict
Worth underwriting
Water Softener & Filtration Route has enough high-level data for a first look, but BizBite has not assigned a category-specific operating model yet. Treat the score as preliminary.
Why it may work
- +Attractive 38% estimated margin profile
Be careful
- !Source link status has not been verified yet
- !No last-checked date yet
- !No category operating model yet
SBA 7(a) data
Real acquisitions in this category
Change-of-ownership loans · NAICS 423740 · Refrigeration Equipment and Supplies Merchant Wholesalers
Deal size distribution
Financing profile
Recent comparable deals
| Closed | State | Loan | Implied deal |
|---|---|---|---|
| Feb 2022 | VA | $654K | $770K |
| Sep 2021 | PA | $2.7M | $3.1M |
| Sep 2020 | TX | $350K | $412K |
| Sep 2020 | TX | $2.1M | $2.5M |
| Mar 2020 | VA | $1.3M | $1.5M |
Source: SBA 7(a) FOIA dataset, filtered to acquisitions (loans where business age is "Change of Ownership"). Implied deal size assumes an 85% loan-to-purchase ratio, a common SBA change-of-ownership structure. Charge-off rate shown only when 10+ loans have resolved (paid in full or charged off). Interest rates reflect last 24 months only. Actual deal values vary with equity injections, seller financing, and working capital terms.
Deal Calculator
Priced off $114K SDE — can this deal service its own debt?
SDE = revenue × margin estimate for this niche; it includes owner compensation, so budget your salary out of cash flow. Excludes working-capital injection, capex reserves, and taxes. Actual SBA terms vary by lender and borrower.
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
Buyer's Toolkit
Essential tools to get started
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Largest business-for-sale marketplace in the US
SBA loans and business acquisition financing — get funded fast
ROBS financing — use retirement funds to buy a business tax-free
Bookkeeping for small business owners — hands-off financials
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