The Journal of the Swimming Pool and Spa Industry is coming back! JSPSI, a peer-reviewed technical journal, began in 1995 as a subscription-supported print-based publication. It contained articles at a technical level, of interest especially to the m
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All pool plaster finishes should last 20 years or more. However, some last only 5 to 7 years, and some less than a year before the plaster surface deteriorates, discolors, and looks terrible.
Why the difference? Very often, plaster quality. As we hav
For 50 years, the pool industry has considered pool water within an LSI of -0.3 and +0.5 to be acceptable and balanced. But recently, and without providing any supporting science or research, the NPC is trying to convince the industry that any negati
There are two important issues involved when trying to achieve quality colored pool plaster that will remain durable, attractive, and the proper shade for many years.
The first issue is to utilize superior workmanship practices to achieve good color,
The Art of Good Pool Plaster Color
An attractive plaster color (other than white) is often preferred by pool owners. However, it is very difficult for plasterers to produce a uniform and consistent color. The reality is that there will always be some
Using the Langelier Saturation Index as a guide for maintaining proper pool water balance and to protect pool plaster has become a mainstay in our industry, and we believe, for good reason.
We at onBalance have conducted several LSI experiments and h
I have a real old Aqua Genie skimmer with a control valve.
My issue is there is no plumbing schematics detailing how to connect the feed inside the skimmer through the control assembly and into the bottom of the hopper. If anyone knows where I can f
Orenda Technologies has recently unveiled a new start-up program that prevents the formation of plaster dust by adding calcium (calcium chloride) to low calcium tap water while filling brand-new plaster pools. We have received communications asking u
For pool builders, remodeling companies, and pool plasterers that want the best chance to obtain a quality and discoloration-free pool plaster finish (including white, color, and quartz aggregate pools), the link below is to an article in WaterShapes
At what temp is wet down of curing gunite not neccessary?
During my visits to the Pool Stores, talking to Pool Store Owners & Store Managers, it is easy to perceive their concern around Online Sites competition. In a social media world and with the accelerated growth of e-Business, it is a valid concern, bu
To have crystal clear water is the ultimate desire of any swimming pool owner.
When your pool water becomes cloudy, not only does it looks less inviting but you could run the risk of exposing you and your family to an unwanted health hazard.
Beginning in 2004, a series of plaster research studies were released by the National Plasterers Council (NPC), which they instigated and financially supported, and which were undertaken by the California Polytechnic State University in San Louis Obi
It appears that the pool industry’s long-time recommended parameters for chlorine and pH levels will be changing in the near future.
The current range of 1 to 4 ppm for chlorine will likely be raised when pool water contains cyanuric acid (CYA), and t
The research and consulting group onBalance has decided to conduct new plaster research studies to generate additional evidence regarding the cause of unsightly plaster discolorations and defects. The plaster issues of concern are gray mottling disco
After a few months of beating my head against the wall, I could not stand it anymore. So I wrote a letter to anyone that would listen. Not many did, but a big thanks to Service Industry News. Maybe we can get some answers, maybe not.
I want to underst
For at least 40 years, many pool service companies have been successfully maintaining their residential pools on a once-a-week visitation basis. Empirical evidence has shown that pool water can be kept safe and properly sanitized without harmful bact
It is amazing how incorrect information gets started, and gains traction despite being wrong, and not based on science. For example, contrary to some pool literature and manuals, it has been shown that a pH of 8.0 to 8.4 is workable, and sometimes is
Experienced service techs know that the pH in many of their pools generally rises above 7.8 within four to seven days following chemical treatments. It is a chemistry reality that when water contains 80 ppm to 120 ppm of carbonate alkalinity, and is
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