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I've been testing at home and at the same store for over ten years. The tests have always pretty much matched but today their test indicated Cyanuric Acid at 38 ppm and I run my pool without any CY, never have. I know that's strange but it works for me. What I'm wondering is how a supposedly...

I've been reading all the discussions regarding CYA and it got me thinking about how much FC is really required. I'm not talking about what one measures with a test kit but actual free chlorine is available for disinfection. Unfortunately I hadn't been able to locate a chart that plotted ORP...

As a followup to my earlier post I was thinking it might be useful to have a list by city of the best way people have found to by Chlorine. If you agree please post just your city name followed by a list of container types and/or sizes (case, 2.5 gallons, 5 gallons, 15 gallons, etc) and price...

I just checked out my local pool store and they can get sodium hypochlorite 12% in both 5 gallon and 15 gallon containers. The larger size comes in a returnable Carboy and costs $47. A small diameter spigot is free or you can buy a larger heavy duty 2" one for $25. It seems like a...

I've spent the last couple of days researching the various pumps and systems and what I don't understand is why they all seem to have such high flow rates, even the ones specifically for residential applications. Am I right that to add 1 ppm of FC to a 30,000 gallon pool one needs less than...

I've been working for some time on a pool that was designed from the beginning with low power consumption in mind. The pool is about 30,000 gallons and has 4 floor returns, a main drain, suction from the skimmers and return to the skimmers (for venturi). The Intellflo pump handles all the...

I was wondering if anyone has a pool with a venturi skimmer and if they liked it. The idea with these is that in addition to being hooked into your suction line they also get water from the return putting water into the pool. That water is routed through a venturi that creates suction to bring...

The other big advantage touted by in-floor cleaning system manufacturers is that they put the return water where you really want it, at the bottom of the pool. That seems desirable since it would would put the warm water low breaking up thermoclines but are there any downsides? I asked my PB...

I've been investigating the various models of in-floor cleaning systems and having trouble figuring out what differentiates them. According to Paramount each dealer only installs one of the product lines which isn't exactly useful when one is trying to figure out which is "best" or at least what...