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.

How to Change an Air Button and Latching Relay on a Hot Tub, Pool or Spa Bath

If you’ve got an air button that’s stopped working, or a latching relay that’s given up the ghost, the good news is that this is a really straightforward job to do yourself. In this article — and the accompanying video — I’m going to walk you through exactly what these components are, how they work, and how to swap them out.
Let’s get into it.

Hot Tub vs Plunge Pool – Which Should You Build in 2026?

Right, this is one of those questions that lands in my inbox on an almost daily basis. Hot tub or plunge pool – which one should you build? And the honest answer is that there is no definitive right or wrong. It really does come down to personal preference and your own circumstances. But in this post I’m going to break down the key differences between the two so that by the end of it, you’ll have a much clearer idea of which direction is right for you.

Key Considerations for Building a DIY Hot Tub in 2026

So, you’re thinking about building a DIY hot tub in 2026? Well, you’ve come to the right place. On my channel and here at buildahottub.com, there’s a huge amount of information about everything you need for building a DIY hot tub. I’ve got parts, designs, video courses, and absolutely everything you need to make your hot tub dream a reality.

In this article, I’m going to highlight some of the key considerations you need to think about before you even start your DIY hot tub project in 2026. These are the decisions that will shape your entire build, so it’s worth getting them right from the start.

The Kansas Craftsman Who’d Never Built a Hot Tub (Until He Built One Better Than Most Pros)

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.

Do I need a Permit for My Hot Tub?

Hot Tub Permit

The short answer is that it depends. Not the most helpful (yet) thing you have read but please do read on. It does depend on where you are located. If you are located in the UK for example, then no, you do not need a permit for a hot tub. You are able to build tubs and pools without a permit or planning permission as it is called over there.

Ultimate Guide to the Hot Tub Air Blower

Hot Tub Air Blower

A Hot Tub should be, as the name suggest, hot. However, most of us also have a picture of a hit tub with lots of bubbles coming from the jets. Where do these bubbles come from? Simple, the Hot Tub Air Blower. In this blog post we will take a look at all things Air Blower related.

Hot Tub Wall Construction – What are the options?

There are a number of ways in which you can construct your walls for a DIY Hot Tub. The designs that are available in my store are all valid of each of the types of construction I describe below. In this article I am going to focus on the different types of wall construction you can opt for. Before we go any further, I must state I am not a structural engineer and this article has been written from experience rather than qualification.

A Guide to Hot Tub Electrics

Hot Tub Electrics

Hot Tub electrics is kind of essential. If you have opted to heat your Hot Tub with an electric heater, you are going to need electricity. Pretty obvious right? OK, but in most instances, it is not just a case of plugging into an outlet. You need to have a dedicated supply for your Hot Tub. But what does that look like? In this article, we’ll explain a bit more about the electrics and requirements for your Hot Tub.