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Not having a great success rate with the AA treatment as described here in the forums. Even when the vitamin C tablet works fine, the AA just isn't taking the stains off consistently, even with heavier than recommended doses. I sell a little brush that hooks to a telescopic pole. It looks...

This is the main ingredient in a stain and scale prevention product that I know of. Does anyone know what it is, how it works, whether or not it's effective? Is it a chelating agent for iron/copper/manganese? Thanks again. Next paycheck, becoming lifetime supporter. Unless my truck...

The manufacturer's directions on a certain AA product that I know of says to balance the water to 100-120 TA and 7.4-7.6 pH, along with 0 chlorine, before starting the treatment. But it's actually more effective to lower the pH to 7.0 or 7.2 before starting, right? The question is, if your...

Manufacturers of chelating agents are pretty consistent with the idea that metals can be filtered out after a sequestrant has been applied with a DE filter or a sand filter + cellulose fiber. Is this a total myth or is there some accuracy to it?

I called Taylor today to finally ask them why they recommended a minimum CH level of 150ppm for a vinyl pool. I spoke to two people before finally being directed to a third. He said that even if the calcium didn't come from the vinyl, the water would try to pull it from somewhere. I said that...

Can someone explain why chlorine is a more effective disinfectant in a lower pH environment? Technical is fine, I've been brushing up on my chemistry for a year. But a subtitled description of what's happening would be fine. Basically, if you you have a swamp with a 25 drop base demand, is...

This is for chem_geek or anyone who wants to chime in. Coming into an unusually warm Spring after an unusually cold and wet Winter in GA, I've had a lot of SWG customers come in saying, "Yeah, the pool is a swamp." Well, their salt level is 1600 ppm and their CYA is indistinguishable from...

Alright, so I've never recorded numbers. Theoretically, bleach from the grocery store should be 6% active sodium hypochlorite. This should make bleach about 63% the cost of the 73% cal-hypo that I sell in my store. I've done 7 swamp-to-pool conversions pro-bono for the sake of knowledge...

I just wanted to say thanks. I'm going into my third summer working at a pool store company. I've followed this forum constantly through the whole journey. Here's where I started: if-you-have-the-time-a-hypothetical-t12484.html Strangely, I have the lowest average per customer sale...

I am hoping that someone could explain the "once a bromine pool, always a bromine pool" adage a little further. An indoor pool, drained one week ago and re-balanced. Bromine tablets are dissolving in a commercial-grade chemical dispenser. However, the bromide salts used to create a...

All other considerations aside... Pound for pound, which is the more efficient oxidizer between chlorine and monopersulfate? If you literally need a pound per pound reference, think 73% cal-hypo.

I'm surrounded by veterans that insist on first-hand experience with vinyl damaged by untreated soft water. So I'm going to put my employee discount to good use and design an experiment. Unless you all tell me that it's not feasible. I'm not looking to publish a paper or anything - just for...

Hello, all of you inexplicably friendly folks. I work in a pool store and had a gentleman come in at closing time tonight. He started a stain removal treatment on Friday afternoon. I didn't sell him the chems (his pool store was closed) but he is sure that the stain removal product was 100%...

Howdy! Hoping for some advice from the experts. This question concerns customers who have very high CYA levels (unfortunately, more common than values that are in range.) Which product is best to recommend as an algae preventative? I have had VERY little success convincing people that they...

Say you just started working at a pool store a couple of weeks ago, have mostly exhausted the usefulness of their training materials, and now you've just surfed troublefreepool.com's forums for six hours. In this alternate universe, you don't have access to 12% liquid chlorine or the grocery...