The Bathtub Framework: Why 10% Across Three Levers Beats 30% on One
There are only three ways to grow any business. Most practices are working one of them and wondering why growth is so hard.
Every practice owner I have ever worked with wants to grow. More production. More new patients. More revenue. The desire is universal and the effort is real.
What is less universal is the strategy — specifically, the understanding of where growth actually comes from and how to generate it without burning yourself and your team out in the process.
The answer has been hiding in plain sight for decades, and it fits in a bathtub.
THE BATHTUB
Imagine your practice revenue as water filling a bathtub. To fill it faster, you have three faucets. You can turn up any one of them, any combination, or all three simultaneously. But there are only three. There have always been only three. There will always be only three.
Jay Abraham, one of the most rigorous business strategists of the last 40 years, frames it this way: the process of getting the maximum yield, for the maximum duration of time, from the minimum investment. Three faucets. Maximum yield. That is the game.
FAUCET ONE — NEW PATIENTS
Bringing new patients into the practice is the most visible growth lever and the one that receives the most attention, the most budget, and the most anxiety. Google ads. SEO. Social media. New patient specials. Referral programs. Every marketing conversation starts and often ends here.
It is also the most expensive, most competitive, and slowest faucet to turn. Acquiring a new patient requires building trust with a complete stranger from scratch. That takes time, money, and repetition. And in a market where there are approximately 12 dental offices for every Starbucks in the United States, you are competing for that attention against a crowded field.
New patient acquisition is necessary. However, it is not sufficient to grow revenues. And for most practices, it should not be the primary growth lever — because the other two faucets are far more efficient and far more underutilized.
FAUCET TWO — FREQUENCY
How often do your existing patients return? Not in theory — in reality. What is your active patient reappointment rate at checkout? What percentage of your hygiene patients are scheduled for their next visit before they leave? How many patients are overdue for recall right now, sitting in your system, uncontacted?
Every patient who leaves without a scheduled return appointment is a closed faucet. Every overdue recall patient who has not been contacted in 90 days is a closed faucet. Every patient who said "call me in a few months" and was never called back is a closed faucet.
Frequency is the most overlooked faucet in private practice — not because owners don't understand its importance, but because the systems to manage it are often weak, inconsistently enforced, and nobody on the team has been given clear ownership of the metric. Fix the system, assign the accountability, and this faucet opens with less effort than any new patient campaign you will ever run.
FAUCET THREE — TRANSACTION VALUE
What does the average patient invest in your practice per visit? Per year? Across their relationship with you?
Most practices are sitting on more than a million dollars in diagnosed but unaccepted treatment right now. That number is not hypothetical — it is a documented reality across the industry. A 10% improvement in treatment acceptance on existing diagnosed treatment, with zero new patients, generates significant additional production. No marketing budget. No new ad campaign. No new patients required.
Transaction value also includes comprehensive case presentation, wellness dentistry, and the services your practice offers that patients don't know about because nobody told them.
THE MATH THAT CHANGES EVERYTHING
If you improve new patients by 10%, frequency by 10%, and transaction value by 10% — simultaneously — you do not get 10% growth. You get over 33% growth. The multiplication of modest improvements across all three faucets produces exponential rather than linear results.
As Jay Abraham puts it: it is easier to be exponential than linear. It is easier to grow massively than it is to grow slowly. The math is on your side the moment you stop treating growth as a single-faucet problem.
THE BATHTUB SCOREBOARD
The framework only works if you measure it. Every month, your practice should track one key metric for each faucet:
For Faucet One: new patients by source. How many, from where, at what acquisition cost.
For Faucet Two: reappointment rate and active patient count. What percentage leave scheduled? How many active patients are you retaining versus losing quietly?
For Faucet Three: treatment acceptance rate and unaccepted treatment balance. What percentage of diagnosed treatment is being accepted? What is sitting in the system unaddressed?
These three numbers, reviewed monthly with your team, tell you more about the health of your practice than any single production figure. They tell you which faucet to turn up, which conversation to have, and where the growth is waiting.
WHERE TO START
This week, before any other growth conversation, run three reports. Your new patient count by source for the last 12 months. Your active patient reappointment rate at checkout. Your unaccepted treatment balance from the last 24 months.
Look at those three numbers together. One of them will be dramatically weaker than the others. That is your first faucet to address. Not the most exciting one. The most impactful one.
Three faucets. Turn them all up. Let the math do the rest.
