We book your overdue pump‑outs.
The homes you pumped 3 to 5 years ago are due again. Most won't call until it backs up. We mail them a card under your name and get them back on your schedule.
or call or text (774) 773-6010
- Count back within a day
- No monthly fee
- You pay only for tanks actually pumped
Hi neighbor,
This home's last pump-out with us was March 3, 2022. Tanks should be pumped every 3 to 5 years, so yours is due again.
Thanks for trusting us! — Mike
Sample card. Yours uses your truck photo, your logo, your phone number and each home's real last pump-out date.
How often most septic tanks should be pumped, per the EPA.
Typical response to mail a company sends its own past customers (ANA house-list data).
How it works
You already have the customers. They just haven't heard from you since the last pump-out.
Free Overdue Tank Count
Send your customer list. Town and last pump-out date is enough. No names needed.
You get back how many tanks are 3+ years overdue and what they're worth. Takes you about 5 minutes.
We reach them as you
Postcards under your name, built from your own truck photos and branding.
- Each card shows that customer's last pump-out date (and tank size, if you have it)
- Addressed "Name or Current Resident" in case the house sold
- You approve every piece before it goes out
- Any mailed home that books within 90 days counts. You get the address list to check.
- About 10% of the list held back, so results are measured honestly
Our fee: $0 until a truck rolls.
$25 per tank actually pumped for our first 10 founding companies (through Jan 31, 2027), for their first 12 months. $50 after that.
Printing and postage at cost (about 85¢ to $1.05 a card), quoted before you approve. No monthly fee, no setup fee, no long-term contract. Stop anytime.
See what your count looks like
This is what you get back from Step 1. One page, sorted by how overdue each tank is.
| Last pumped | Tanks | Share |
|---|---|---|
| 3 to 4 years ago | 180 | |
| 5 to 6 years ago | 120 | |
| 7 to 9 years ago | 70 | |
| 10+ years ago | 30 | |
| Overdue total | 400 | of 1,500 customers |
Worth: 400 × your own average pump-out price.
What you send
- Your customer list, in whatever form you have it
- At minimum: town and last pump-out date per customer
- No names or phone numbers needed for the count
What happens after you send your list
- Day 1Your Overdue Tank Count comes back: how many are overdue, how long, and what that's worth at your price.
- Day 2A proof of your card with your name, truck and phone number. Start with your first 100 to 200 homes.
- You approveNothing is printed until you say so. You get the exact printing and postage quote first.
- Within a weekCards are printed and mailed. About 10% of the list is held back so you can see the difference. Plan on 4 to 8% of mailed homes booking a pump-out.
- Once a monthOne invoice listing every mailed address that booked within 90 days. Due in 15 days. Anything you don't recognize, tell me and it comes off.
Not another app to run
Other options are software you pay for every month and still run yourself.
| Follow-up software | DueBack | |
|---|---|---|
| Monthly fee | Roughly $99–450 a month | None |
| Who does the work | You do | We do. You approve. |
| When you pay | Every month, whether it works or not | $25 per tank actually pumped, plus printing and postage at cost |
Who's behind this

I'm Cole Ormont, 19, from Plymouth, Massachusetts.
This fall I asked owners in a 41,000-member septic group how they follow up with past customers. The good ones send reminders. A lot of others told me the same thing: "we wait for them to call." DueBack sends those reminders for you, under your name.
Cole OrmontFounder, DueBack
Taking 10 founding pumpers at $25 a tank, through Jan 31, 2027. 9 spots left. One pumper per area.
Why trust a brand-new company?
- You pay only for tanks actually pumped. No contract, no monthly fee.
- Nothing goes out without your OK. You approve every card before it's printed.
- Your list stays yours. Signed confidentiality agreement, never shared or sold, deleted when you ask.
- You can reach me directly. Cole Ormont, (774) 773-6010, cole@duebackhq.com.
Straight answers
Wouldn't calling them myself work better?
Calls work. Mail reaches the ones whose numbers changed or who moved. Best is both: we can hand your office a street-sorted call list and a short script to go with the cards.
How do I know they called because of the card? I get a lot of repeat customers.
A booking counts when a home we mailed books within 90 days, or when a customer mentions the card or scans its code. Jobs already on your schedule before the cards land don't count. About 10% of your list isn't mailed, so you can see how many of those book on their own. You get one invoice a month listing every address.
Where does the tank size and location come from?
Your own records: QuickBooks notes, your field app, or paper tickets. If you don't have tank size, the card shows the last pump-out date and skips that line.
Do I have to offer a discount?
Your call. Some options: a neighbor deal (book with a neighbor the same week and your truck does two tanks in one trip), or a book-by date.
How many of these have you run?
Straight answer: DueBack is new. Our first pumper's cards go out in November 2026. That's why you pay nothing for cards that don't book. Your only cost before a truck rolls is printing and postage, and you approve that quote first. Start small, with your first 100 to 200 homes.
Is my customer list safe?
Your list is used only for your mailings. It's never shared or sold, and it's deleted when you ask. I'll sign a one-page confidentiality agreement. For the count, you can send just the town and last pump-out date. Never send card or bank details.
What does it cost?
$25 per tank actually pumped for our first 10 founding companies (offer ends Jan 31, 2027), for their first 12 months. $50 after that. Founding pumpers share their monthly job list so results get counted, and if it works, let us share their results. Printing and postage at cost, about 85¢ to $1.05 a card, quoted before you approve. No monthly fee, no setup fee, no long-term contract. Stop anytime.
Get your free Overdue Tank Count
Find out how many past customers are overdue right now, and what they're worth.
- No form to fill out
- Count back within a day
- Your list is never shared or sold
Send your list or just call
- Town and last pump-out date per customer
- Text it, email it, or call and we'll walk you through it