The cheapest proper hot tub to build is a stock tank hot tub. Here’s what the tank, plumbing kit and electrics cost, plus two other budget ideas.
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.
I designed a tub for Kyle in the USA that works as both a hot tub and a cold plunge. See how his backyard wellness centre came together.
Tub & Pool Designer Pro is my free 3D design tool for hot tubs and plunge pools, with optional plumbing diagrams and architectural CAD drawings.
Everything to think about before you build your own lap pool: size and depth, construction, finishes, heating a big volume of water, filtration, sanitising, covers and the UK and US rules.
Chris swapped his electric heater for an air source heat pump. Here’s how we planned it, the pre-plumbed bypass he found, and the fix for his E3 flow error.
Paul walks us round his nearly finished DIY hot tub in the UK and explains the features and thinking behind the design.
John from Kentucky built an 8×8, 14-jet hot tub from my ready-made plans. Follow his build from the dig and block walls to the finished tub.
Good DIY hot tub plans give you real dimensions, a plumbing layout, a parts list and structural drawings. Here is what to look for and what my plans include.
Paul built his own hot tub in the UK from one of my standard designs, adding curves, a lounger and a wood burner. Follow the build and his top lessons.










