Imperial or metric plans? How to choose hot tub dimensions that suit the blocks, pipe, tiles and timber you can buy locally, plus the conversions and traps worth knowing.
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.
25
Sep
Sep
What does a DIY hot tub cost in 2026? A line-by-line breakdown of an 8ft x 8ft in-ground build, from the dig to the electrics, with US and UK price ranges.
01
May
May
Four things I’d do differently if I built my DIY hot tub again: ICF, a dual pump system, a bigger control room and mosaic tiles.
Design / Ideas Related, DIY Hot Tub Building, Materials and Construction Related, Plumbing Related
How to Change an Air Button and Latching Relay on a Hot Tub or Pool
20
Mar
Mar
Air buttons and latching relays are cheap and easy to replace. Here is how they work, how to spot failure, and how to change both.
Design / Ideas Related, DIY Hot Tub Building, Uncategorized
Hot Tub vs Plunge Pool: Which Should You Build in 2026?
07
Mar
Mar
Hot tub or plunge pool? An honest side-by-side of size, temperature, plumbing, cost, safety and upkeep, plus how to get the best of both.
DIY Hot Tub Building, Uncategorized
Planning a DIY Hot Tub in 2026: 10 Key Decisions to Make Before You Dig
10
Feb
Feb
The decisions that shape every DIY hot tub build, from size and control room position to jets, heating and finish, and how to get help with the design.
Case Studies / Example Projects, DIY Hot Tub Building, Uncategorized
The Kansas Craftsman Who’d Never Built a Hot Tub (Until He Built One Better Than Most Pros)
11
Dec
Dec
Sure, he’d built plenty of things. Deck? Check. Workshop? Done. Custom furniture? No problem. But a hot tub? That was different. That was one of those projects where most people just throw up their hands and call a contractor.
Most people aren’t Mark.
30
Aug
Aug
I know, it’s been an age since I have created some new content. Have a watch of this video to learn what has been going on this summer.
Design / Ideas Related, DIY Hot Tub Building, Reviews & Info
Do I Need a Permit for My Hot Tub? UK and USA Rules Explained
09
May
May
Whether you need planning permission or a permit for a hot tub in the UK or USA, what usually triggers one and how ready-made structural drawings help.
Cocktail & Plunge Pool Related, DIY Hot Tub Building
Can You Add a Hot Tub to an Existing Swimming Pool?
27
Apr
Apr
How to add a hot tub or Jacuzzi to an existing swimming pool: size, overflow, chemicals, using the pool plumbing, jet pumps and heating.