For dive centres

Keeping rental gear under control

Rental is where most centres leave money on the table - not through theft, but through rental days nobody wrote down and items nobody misses until they are needed.

The three questions that must always be answerable

Who has it? Not "a guest has a computer", but which guest has which unit. Numbered items are half the battle.
Since when? That is the basis for billing - and the reason for arguments on departure day when nobody noted it.
What is back? The question only ever comes up when the item is needed for the next guest.

Sets and single items

Most centres rent both: the full set at a package price and single items for the guest who only needs fins. Representing that cleanly is where spreadsheets fail - a set is a list of items but only one billing line. Mix the two and you either double-count or lose track of individual pieces.

From experience

The most common error is not forgetting but double-booking: the same set is booked again every time the dialogue is opened, and the bill ends up with dozens of zero-value lines. A rental system has to recognise what is already out.

Counting rental days without arguments

Decide in advance what a rental day is: calendar day or 24 hours, departure day included or not, part day full or half. Once that is in the system, the bill on departure day ends the discussion - the guest sees the same number you do. Capping the departure day is the friendliest variant: someone returning at eight in the morning before a midday flight does not pay a full day.

Do not forget servicing

If you are already recording who had which unit, the step to a service history is small: which regulator went in for service when, which computer has seen the most days, which cylinder is due for testing. That is the part that counts when something goes wrong - and the part that regularly disappears from a note in the compressor room.

Frequently asked questions

How do we keep track of which gear is out?

By assigning each item to the guest when it is handed over, with the unit number where items are numbered. Your guest list then shows per guest what they have and since when.

How do we bill rental days correctly?

Set the rule once - calendar day or 24 hours, departure day full or capped - and let the system count. Arguments on departure day almost always come from different counting methods, not bad faith.

Can we handle sets and single items separately?

Yes. A set is a list of items with one billing line; single items run alongside. What matters is that a set is not booked again every time it is opened.

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