minimum standards
This time around, I'll follow a detour from the design-oriented publications we've been covering to take a look at a truly unique resource: If you build residential swimming pools and spas or are considering moving into the field, the National Spa & Pool Institute's Residential Pool & Spa Builders Reference Manual is a useful and informative text unlike any other available to the trade. Written and reviewed by dozens of NSPI's builder members, the manual offers a comprehensive overview of pool and spa construction while providing a good foundation of general business and technical information. That makes sense, because it is basically the