ChlorBench is an independent site that works out pool volume and the chemical doses that follow from it.
It exists because the answers to these questions are mostly published somewhere already — in code tables, manufacturer datasheets and industry standards — and almost none of it is available in a form you can actually use while standing in a merchant's yard.
Where the numbers come from
- the 7.48 gallons per cubic foot conversion, and the standard volume formulas by pool shape
- published active-chlorine percentages for cal-hypo, dichlor, trichlor and liquid chlorine
Every page states the source and the assumptions behind its figures, because a number without its assumptions is not much use. Where a constant is a convention rather than a measurement, we say so.
Every dose a pool will ever need is volume multiplied by a c…
Every dose a pool will ever need is volume multiplied by a constant, which makes volume the most valuable number in pool care — and most people are using the figure from a brochure rather than one they measured. Get it wrong by a fifth and every chemical for the life of the pool is wrong by a fifth.
What this site does not do
We do not give advice on pool equipment repair, electrical bonding or anything involving the pump circuit. Water and electricity together is a licensed trade.
Who runs it
One person, working on this alongside other things. There is no editorial team and we are not going to invent one — what should earn your trust is that every figure on the site names the standard it came from, so you can check it yourself.
Calculations are written as code and tested against every combination they can produce, rather than typed into a page by hand. When we get something wrong we correct it and leave a note.
How it is paid for
ChlorBench is free to read and funded by display advertising. There are no sponsored placements and no affiliate links on the site; nothing here changes based on who sells the product.
Getting in touch
Corrections and questions go to [email protected]. Corrections are the most useful thing you can send — see the editorial policy for how we handle them.