Built for Swimming Pool & Hot Tub Engineer businesses
Water readings written on a pad, so nobody spots a pH drifting over three visits
Record pH, chlorine, alkalinity and temperature against the pool itself and see them next to last time, one value per row
A pool and a hot tub at the same house with one muddled history between them
Each one is its own record with its own readings, service dates and costs, even at the same address
Filters, salt and cartridges reordered only when the customer complains
Consumables you have billed before are flagged when they are due again, and Reorder starts the purchase order for you
Regular servicing that quietly lapses because nobody was chasing it
Set the service interval once and VioTrade reminds you 30, 7 and 1 days before each one is due
Everything a Swimming Pool & Hot Tub Engineer needs
One app to replace the spreadsheets, paper invoices, and admin pile.
Customer Assets
Each pool, spa, heater and dosing system as its own record, with make, model, volume and where it is on site.
Readings You Can Compare
Log the water chemistry every visit and read it back as a list, so a slow drift is obvious rather than buried in notes.
Service Reminders
Weekly, monthly or seasonal - set how often each pool is serviced and get told before it is due.
Job Scheduling
Plan a round of regular visits, see the week at a glance, and keep the driving sensible.
Purchase Orders
Order chemicals and parts from your supplier and keep the cost against the pool it was for.
Invoicing on Site
Bill the visit before you leave, with the chemicals used on the invoice and photos of anything that needs attention.
Built for the way UK pool and spa work actually runs: a mix of regular maintenance rounds, seasonal opening and closing, and reactive callouts. Readings, photos and invoices all work with no signal, which matters in a plant room.

Frequently asked questions
Can I record water test results against each pool?
Yes. Set up the readings you take - pH, chlorine, alkalinity, temperature, whatever you check - and log them on every visit. They are listed one per row next to the last visit, so a trend is easy to see.
What if a customer has both a pool and a hot tub?
They stay separate. Each is its own record with its own readings, service dates, certificates and costs, even at the same property.
Can it remind me about filter changes and chemical reorders?
Yes. Set how often each pool is serviced and you get reminded before it is due. Consumables you have invoiced before are flagged when they are due again, and you can start the purchase order from there.
Does it work for commercial pools as well as domestic?
Yes. Commercial sites usually mean more equipment and more paperwork, which is exactly what the asset records and job sheets are for.