Quote Originally Posted by monsmth123 View Post
Ok thanks that makes tons of sense I take my water to local pool store they are right down the road and don't charge me.
Hi Monsmith;

I'm not sure if you were being sarcastic, or not. Regardless, the idea that pool stores "don't charge you to test your water" is one of the most effective marketing lies in the US.

I wish I had posted a history of the development of computerized pool testing, when I started PoolSolutions in the late 90's. At that time, the guys I knew who'd watched it happen were still alive. Unfortunately, that's no longer true, and my notes aren't great. But here's the Cliff Notes' version: in the late 70's and early 80's, swimming pool chemical companies introduced "computerized water testing" PURELY as a marketing tool!

I saw one of the early pool computers installed -- it was a "mini-computer" that cost over $10,000 in 1980 dollars! There's no way that that store, or any other store of the time, would spend that sort of money merely to help pool owners. The ENTIRE purpose of those systems was to utilize the 'cachet' of "computerized water analysis" to sell you more chemicals, and especially, more of the high margin chemicals.

Here's a basic fact you need to always remember: accurate and reliable water testing and analysis HURTS pool store chemicals sales. In other words, if they do it RIGHT, they lose money. If they do it WRONG, but don't get caught, they make money!

Not all pool store owners understand this -- and the pool chemical companies don't explain that their water analysis programs work best, when they make random mistakes. But, for years, we've had pool owners who lived nearby each other collect multiple samples from the SAME pool, and then have them tested as if they were from DIFFERENT pools. As best I can recollect, it has NEVER happened that a pool store got the same results from all three samples, much less recognized (from the numbers) that they were all from the same pool!

So, whatever else pool store water analysis is, it's NOT free. Rather, it's very, very expensive.