Calculator
Cleaning frequency calculator
How often your drain actually needs clearing depends on four things: how many people use it, hair length, whether there is a strainer, and whether you already pour boiling water. Answer four questions, get a schedule.
Answer the five questions and press Build my schedule.
The one rule that beats every schedule
A kettle of boiling water once a week, poured slowly, prevents more clogs than any product. Everything else on this page is a refinement of that.
How this is calculated
The model weights hair volume (people × long hair), shower frequency and strainer presence to estimate how fast a hair mat forms, then sets a clearing interval with a safety margin. It is a rule of thumb, not a measurement of your pipe.