hot tub
Hot Tubs

How to build a hot tub spa

How Would You Like To Have The Coolest Hot tub Spa In Town?

And You Don’t even Have To Tell Anyone It Cost You THOUSANDS Of Dollars Less Than Theirs (unless you want to rub it in a little).

CUSTOM BUILT SPAS will show you how to save up to 80% of the cost and get a fantastic CUSTOM HOT TUB of your own.

If you thought that building your own custom hot tub is way out of your league, think again. Gene Trumbull takes you every step of the way to build your own hot tub spa or swimming spa. Custom Built Spas is a complete guide from design to dive in, written for beginners through expert builders. This guide is chuck full of information backed up with pictures and professional graphics that leave nothing to the imagination. Plus if anything is still unclear Gene offers personal coaching for FREE. I can tell you from experience that this is one product that is backed up with all the support you will ever need.

Here are just a few of the topics covered in the 48 sections

Site Selection Planning and Spa Foundation
Electrical Preparation You Can Do On Your Spa
Plumbing Your Spa
Jet Style, Jet Sizing and Spa Jet Installation
Water Treatment
How To Do Your Own Tile Work
Spa Start up and Care
Ozonators and Ionizers vs. Chemical Treatment
Winterizing Your Spa
Solar Heating Options
For Added Spa Performance


If you have any doubts about taking on a project like this, read what a few of Gene’s satisfied customers have to say:

What can I say, Gene’s materials,and supplies arrived on time, were of the highest quality and most importantly, he was available throughout the process. His knowledge and skill are unsurpassed! He handles your questions and issues with respect and practical solutions that are invaluable. This project is great for a do-it-yourselfer.

With Gene’s coaching help, our family ended up with an impressive spa at far less then the cost for a portable spa or commercial built spa. Our friends and neighbors can’t believe that we did it ourselves. We are looking forward to many seasons in our new in ground spa.

-Tony Foschi

Harrisburg PA

I received your DIY spa building book and it’s fabulous, absolutely fabulous! I can easily see how I can save money and create a really nice spa! Thanks again for putting together an awesome resource at an excellent price!

-Frederic Breitwieser
Colonia, NJ

I don’t have enough words to praise Gene and the outstanding customer support he provides!

Ever since I first got in touch with Gene to purchase his spa building manuals, he has been helping me!

The level of professionalism and his fast response to my every email gave me enough confidence to go ahead and gamble on an international purchase (I live in Panama). he quoted the best prices and provided me with customized options. The delivery came on time and he followed my progress all the way to its conclusion!

The way the manual is explained gave me enough confidence to decide on a shape other than round or rectangular… and I’m pleased with the results! Thanks again Gene, I owe you for years of relaxation to come!

-Augusto Villarreal


I am a sauna enthusiast and I love wood-fired saunas for their traditional feel, possibility for installation anywhere without worrying about electrical access and ability to reach high temperatures.