Category Archives: Support & Maintenance

A FLO error means your spa pack can’t detect water flowing through the heater. Here’s how to find the cause, from the free checks to the pressure switch.

The wiring diagram inside your spa pack’s lid answers almost every setup question, once you know how to read it. Here’s a section-by-section guide.

Swapping a topside is easy. Buying the right one isn’t. Here’s how to match a Balboa panel to your spa pack, from BP and spaTouch to the VL suffix rules on VS and GS packs.

Mould, sap, rust or chalky patches on your hot tub cover? Here’s how to clean each one off without harming the vinyl, what never to use, and when a cover is past saving.

Avoid Airlocks and Get Your Hot Tub Up and Running Quickly

Filling your hot tub with water may seem like a simple task, but if you do it wrong, you could end up with frustrating airlocks that prevent your jets from working properly. In this blog post, we’ll share the correct way to fill your hot tub, whether it’s a plastic shell tub or a DIY hot tub you’ve built yourself.

Muriatic acid is hydrochloric acid, and it’s very good at lowering pH and alkalinity, but it’s hazardous and needs a licence in the UK above 10%. Here’s how to use it safely and when pH minus is the better choice.

Cyanuric acid protects chlorine in outdoor pools, but in a covered hot tub it just slows chlorine down. Here’s where it comes from, what level to aim for and how to get rid of it.

What a backyard swim spa is, how big they are, whether to buy or build one, and what to plan for: the base, electrics, access, permits, running costs and water care.

Practical ways to cut your hot tub heating bill, from the cover and insulation to heating schedules, with what each degree really costs at 2026 prices.

What makes hot tub water cloudy or murky, how to work out which cause you’ve got, and the filter, balance, shock and clarifier routine that clears it, usually without draining.