The city requires the annual backflow test — and the city sends the scary letter. Your reminder campaign just has to arrive first: the text sequence, the compliance letter, and the failed-test flow.
System 7 from the Leveraged Owner Starter Pack
Backflow testing is the rare service customers are legally required to buy every year — and they still forget, because the city's compliance letter looks like junk mail until it's a violation notice. The plumber with a reminder system owns this work in their market: the text arrives before the city's letter, the test gets scheduled in one reply, and failed tests become repair jobs. Here's the campaign — with appointment confirmation texts confirming every test visit.
Timing is everything — the reminder must land 30–60 days before the customer's compliance deadline. The sequence:
Reminder text (45 days before deadline):
"Hi [Name], [Business] here — your backflow preventer's annual test is due by [date] per [city/water authority]. We can knock it out in about 30 minutes and file the paperwork with the city for you. Want me to schedule it? Reply TEST and I'll find a time. Reply STOP to opt out."
Follow-up (14 days before deadline, only if no reply):
"Hi [Name], [Business] — quick follow-up: your backflow test deadline is [date], two weeks out. After the deadline the city can fine [or shut off service — use your city's actual consequence]. I've got [two specific times] open this week if you want it handled. Reply STOP to opt out."
The "file the paperwork for you" line is the closer — the test itself is a commodity; handling the bureaucracy is the service customers pay happily for.
Concrete takeaway: 45 days out (offer + paperwork handling), 14 days out (real consequence + two times). The paperwork line is what books the job.
Here's the multiplier: give commercial customers and HOAs a letter they can forward to tenants, property managers, or board members. The template:
Every forwarded letter is free marketing to people who need the same service. Make the template a PDF your customer can forward in one tap.
Concrete takeaway: give customers a forwardable compliance letter. Every forward is a free introduction to the next backflow customer.
Some tests fail — and a failed backflow preventer is an immediate repair or replacement job with a compliance deadline attached. The flow:
Concrete takeaway: quote the repair on-site, bundle the retest and filing into one price. Motivation is highest at the moment of failure — don't let it cool.
The campaign needs a list, and backflow lists build themselves:
Concrete takeaway: the list builds from every test, every commercial visit, and every irrigation install. Tag the due date at the source.
Every backflow assembly exists to protect drinking water from an irrigation system — which means every backflow customer has an irrigation system, and half of them need irrigation work. The annual backflow visit is the perfect moment to look at the sprinklers: broken heads, misaligned zones, a controller still on the winter schedule. A two-minute walk of the zones while the test runs turns a compliance visit into a cross-sell conversation.
Train the tech on the handoff line, not the hard sell: "Your backflow passed. I did notice two busted heads in the front zone and your controller's still running the winter program — want me to have our irrigation tech swing by Thursday? It's usually a quick fix." The notice is the service; the offer is optional. Customers experience this as thoroughness, not upselling, because the tech found something real.
If you don't do irrigation, partner with someone who does and take the referral both ways. The irrigation company sees every backflow assembly in town and can send the testing work to you; you send them the broken heads. Formalize it: a simple reciprocal agreement, a shared scheduling contact, and a quarterly lunch to keep it alive. Two trades, one customer list, zero ad spend.
Concrete takeaway: add the two-minute zone walk to your backflow test procedure this week — and line up the irrigation partner if you don't do the work yourself.
At 30 days, verify the list: every backflow customer tagged with a test-due date, and the 45-day sequence firing on schedule. The most common failure is the import — install dates living in the old software, on paper cards, or in the owner's head. The sequence can't remind customers you haven't loaded. Data entry is the unglamorous foundation of the whole campaign.
At 60 days, track the compliance-letter forwards: are customers actually forwarding the letter to their HOAs and property managers? If not, the letter may be too technical — rewrite it for a non-plumber audience. And check the failed-test flow: how many failures turned into repair quotes, and how fast? The failure is the revenue moment; measure the capture rate.
At 90 days, look at the irrigation tie-in: how many backflow visits produced an irrigation conversation, and did the partner (or your own crew) get the work? The cross-sell is the margin multiplier on a compliance visit — if it's not happening, the techs need the handoff line rehearsed, not just written down.
For the reactivation layer, Mining Your Customer File for Revenue. For the commercial angle, Grease Trap Service Reminders.
The full setup SOP, all four copy-paste scripts (including the owner notification), the "Your Numbers" missed-call worksheet, and the step-by-step setup guide — free, no catch. Fix your missed calls this week.
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This post is System 7 from the Leveraged Owner Starter Pack — the done-for-you version with the full step-by-step SOP, every script, the worksheets, and screen-by-screen setup instructions for all 8 systems.
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HVAC no-show reduction: the confirmation cadence, day-before verification texts, and the morning-of check that cuts no-shows without annoying customers.
Speed-to-lead for electricians: the 5-minute response playbook for emergency and panel calls — cadence, triage scripts, and after-hours capture setup.