Eric Knight
Recent Posts
What is the ideal pH for swimming pools?
Pool industry textbooks and certification courses tell us that swimming pools should be...
What is a Hot Start?
A "hot start" is a method for starting up a new or resurfaced pool using a lot of acid. It is...
NSF/ANSI 50 Certification and the Model Aquatic Health Code
Commercial Pool Chemicals must be NSF Certified or EPA Registered "New: Specifies that numerous...
Why does Soda Ash cloud up pool water?
Sodium carbonate (Na2CO3), more commonly known as Soda Ash, is an additive to raise the pH and...
Leave It Better Than You Found It
My grandfather has a few rules that go unquestioned and are universally obeyed. One of them is...
Honesty in Water Chemistry Testing
If you're not testing,...
What is Alkalinity?
Alkalinity is one of the primary things measured in water chemistry. But what is it? Total...
Avoid Instant Gratification
We live in a world of instant gratification Delayed gratification doesn't sell. In an effort to...
Pool turned green from copper and a chlorine shock
I got a text from a customer in the Northeast that just finished plastering a pool the week...
Warmup Pool Overloaded: How Orenda Enzymes Handled 850 Swimmers
The following is a true story, exactly the way I remember it. Not that I could ever forget my...
What Causes Cloudy Pool Water?
Pools get cloudy for a number of reasons. This article will discuss several of them, but keep in...
