The 20-litre jar on the office dispenser is one of those things you only notice when something's wrong with it — and by then it's a complaint from your facilities team. Picking the right supplier up front avoids that entire category of problem. Here's what actually separates a good 20 L supplier from a marginal one.
Sealed versus loose — the only thing that really matters
Many local 20 L jar suppliers refill the same physical jars repeatedly without a tamper-evident seal. There's no way for the office or its auditors to know whether the water came from a treated source, sat in a warehouse for a week, or was filled from a local borewell that morning.
A sealed jar — one delivered with a tamper-evident cap and a batch print — is the only credible answer to that question. The seal is what tells your safety officer the contents are what's on the label. If a supplier can't show you their seal, that's the only data point you need.
Cadence and reliability
What matters next is the regularity of supply. Office water consumption is predictable — a 50-person office goes through roughly 4–6 jars a week, give or take. A good supplier sets a fixed delivery day, holds buffer stock, and confirms changes proactively. A bad supplier shows up on the day after the pantry has been empty for two days because nobody followed up.
Ask any supplier for: a fixed weekly or fortnightly delivery slot, a single named point of contact, and what their escalation looks like when a delivery slips. The presence (or absence) of an answer tells you everything.
Pricing models: per-jar vs subscription
Most office accounts run as a per-jar invoice — you pay for what you consumed each month, and the supplier delivers against a confirmed order. The cleaner model is a subscription: a flat monthly fee for a confirmed jar count, with a small overage band built in. Subscriptions are easier on the finance team and incentivise the supplier to keep you happy.
Either model is fine; the things to confirm are: GST treatment, what happens if you scale headcount up or down, and refund policy on jars not delivered against a confirmed schedule.
Audit and compliance
If your office runs ISO, sustainability or workplace-safety audits, the water supply enters the audit scope. Sealed jars with batch printing give you a clean paper trail — you can show the auditor exactly what arrived, when. Loose jars create gaps that auditors will flag and that your facilities team will spend time defending.
The practical move is to align on this once with your supplier and lock it in: every jar arrives sealed, batch number printed visibly, GST invoice cites the same batch. None of this is exotic; it just needs the supplier to take it seriously.
How Tuppka structures this
Tuppka 20 L jars are sealed and batch-printed; office accounts run on a confirmed weekly or fortnightly cadence with a single point of contact and standard GST-compliant invoicing. Setting up a new account usually takes a week from first call to first delivery.
Sealed versus loose jars, supply cadence, audit and hygiene — the practical things to check before you commit your office water to a supplier.