What does an infinity edge really add to a DIY hot tub? A 2026 breakdown of the extra build and running costs, from the balance tank and second pump to waterproofing, tiling and top-up, with where you can and can’t save.
Category Archives: Design / Ideas Related
23
Oct
Oct
Square, round, hexagon or octagon? How each hot tub shape affects seating, water volume, the walls, tiling, plumbing and the cost of the cover, and which shape I’d pick for which build.
09
Oct
Oct
How deep should a hot tub be? The water depth, seat heights, footwell and step sizes I design DIY hot tubs to, in feet and metres, and why they all depend on each other.
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.
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, Design / Ideas Related
Can You Build a DIY Infinity Pool? Balance Tanks, Plumbing and Design
07
May
May
How to plan a DIY infinity pool: structure, balance tank sizing, edge flow, twin drains, waterproofing and materials.
Design / Ideas Related, DIY Hot Tub Building
Hot Tub Air Blower: The Ultimate Guide to Choosing, Fitting and Protecting One
24
Apr
Apr
How a hot tub air blower works, how to choose one that suits your spa pack, and how to wire, plumb and protect it with a check valve and a Hartford loop.
Design / Ideas Related, DIY Hot Tub Building, Materials and Construction Related
Hot Tub Wall Construction: Block, CMU, ICF and Poured Concrete Compared
23
Apr
Apr
The main ways to build DIY hot tub walls compared: poured concrete, block cavity, CMU, ICF and in-ground cavity.