So I just got a Power Vac PV2100 and filmed it for my YouTube Channel. It is a pretty awesome product and will speed up my time out in the field tremendously.

It seems even in my area the Hammerhead is more popular and was wondering if it was just better marketing or better product that makes this appear so. So a little informal survey. Which do you use and which would you think about purchasing? And has anyone used both and can compare that way?

Here is my blog article on the Power Vac and video in case you have no clue what I am even referring to - ha, ha.

http://poolmandave.blogspot.com/2015/06/power-vac-pv2100-portable-professional.html

I think there is definitely a huge market for these types of pool vacuums and the trend is upward as I see many pool guys and pool companies investing in them. Both the Power Vac and Hammerhead have good reviews from those I have already heard from. The point of which one is better might be a matter of preference. I don't know so I am looking forward to your responses.

I have been testing the Bio-Active CYA reducer and filming the results. Working on a new video in which I am testing it in six pools like the manufacture did for the back of the packaging. I know the stuff is working because the Turbidity test solution is not as cloudy on the follow-up test but getting a spot on CYA reading is tough.

I suspected there was some interference with the results in some test pools and called Taylor Technologies. The Chemist assured me nothing will interfere with the Melamine solution. I mentioned Combined Chlorine or a high pH and he said that this has no effect on the test. But there must be something in certain pools that won't allow me to get a good follow-up reading and I stumbled upon this article by Doug Latta on possible interference. I am going to test his theories on my route and see if it helps get a more accurate turbidity test. 

In case you are wondering the results are good but not nearly as good as the manufacturer posted results. The test is of course somewhat bias as to when the dot disappears and also the guy at Taylor mentioned a few common sense things that could throw off the test like dirty vials or getting a sample from a dead spot in the pool. 

Not withstanding that and retesting several pools I am getting a CYA drop of 40 ppm - 80 ppm but in one test pool the results were negative.  The Bio-Active seems to work but not as well as the manufacturer states - which is pretty common.

Here is Dougs article: http://jspsi.poolhelp.com/ARTICLES/JSPSI_V1N2_pp37-39.pdf

If you are interested in my Blog article on Bio-Active here it is - I am updating it soon after I finish more testing.

http://poolmandave.blogspot.com/2015/04/bio-active-cyanuric-acid-reducer.html

And if anyone is also testing this product let me know if your results are good or bad.