A real-world fix for a centrifugal hot tub jet pump that wouldn’t prime because the pipework sat too high, using a self-priming pump and three ball valves, plus the options to consider first.
Category Archives: DIY Hot Tub Building
This blog covers everything you need to know about building your own DIY Hot Tub. From planning to plumbing, I cover it all.
DIY Hot Tub Building, Materials and Construction Related, Plumbing Related
Hot Tub Pipe: Sizes, Types and Pressure Ratings Explained
14
Jun
Jun
Everything you need to know about hot tub pipe before you order: imperial vs metric sizes, what sizes a DIY tub needs, pressure ratings in hot water, rigid vs flexible, and testing.
Case Studies / Example Projects, DIY Hot Tub Building
My Hot Tub Control Room Remodel: What I Changed and Why
22
May
May
The control room was the part of my own hot tub I was least proud of. Here’s how I rebuilt it, what the heat pump did to my running costs, and what I’d do today.
Case Studies / Example Projects, DIY Hot Tub Building
Inspirational DIY Hot Tubs: Customer Build Updates (Video)
07
May
May
A video round-up of customer DIY hot tub builds in progress, plus the stages every build goes through and more case studies to inspire your own.
DIY Hot Tub Building, Support & Maintenance
Can You Control a Swimming Pool Light with a Hot Tub Spa Pack?
08
Apr
Apr
Spa pack light outputs are too small for a proper pool light. Here’s why, what Balboa and Gecko packs actually supply, and how my connection kit lets your topside switch a pool light on and off.
10
Mar
Mar
A general contractor can build you a great hot tub, but the plumbing is where it goes wrong. Here’s how to choose, contract, pay and check a builder in the UK and USA.
25
Feb
Feb
How my custom hot tub design process works, step by step: from your rough sketch and site video to the 3D model, plumbing layout, CAD, build guide and parts quotation.
09
Feb
Feb
You can heat a hot tub from your home boiler using a heat exchanger on its own heating zone. Here’s how it works, how to size the exchanger properly, what it costs to run in 2026 and how it compares with a heat pump.
Design / Ideas Related, DIY Hot Tub Building
Spa Pool Combo – Backyard ideas, design considerations and more…
31
Jan
Jan
A Spa Pool Combo, as the name suggests, is a combination of a Spa, Jacuzzi or Hot Tub combined with a swimming pool. Having a Spa Pool combo in your backyard is the ultimate relaxation zone. Somewhere to unwind after a long stressful day. It is also serious #backyardgoals and in this article, I am going explore all things Spa Pool related.
DIY Hot Tub Building, Materials and Construction Related
Cinder Block Hot Tub: A DIYer’s Guide to Building One
17
Jan
Jan
Yes, you can build a hot tub from cinder blocks. Here’s how to size it, build the base and reinforced walls, plumb, insulate and waterproof it, from someone who built his own.