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Who is "they"? On the App Store page the support email is "[email protected]". Isn't that you?

Jason, I've used http://www.poolcalculator.com/ for many years. I liked it so much that I bought 2 copies of the iPhone App, http://itunes.apple.com/us/app/pool-cal ... 76581?mt=8, one for myself and one for my daughter. But I have an issue with the App and tried to email support (you) and got a...

I think the availability of MA will be a problem for me. Last year I looked in Home Depot and Lowes and they only had alternatives. I finally found MA at my local Ace Hardware store. But when I went there this year, they had this Acid Magic. I think retailers are moving to these alternatives...

Any problems using Acid Magic in lieu of Muriatic Acid? See http://www.certol.com/AcidMagicHome.aspx

Yes, but "Sodium hydroxide (NaOH), also known as lye and caustic soda, is a caustic metallic base". Isn't that a bit harmful to equipment and people? You might say the levels are very low. But I was told that the reason the SWG works is that in the cell the levels of chlorine are at shock...

Is there a web site that definitively explains how a SWG works? Not a marketing site! One that explains what happens to the sodium.

Then why does the Chlorine / CYA Chart say, "Most saltwater chlorine generator (SWG) pools appear to prevent algae at a lower minimum FC level compared with the minimum FC column for manually dosed pools."? When salt is dissolved in water it becomes Sodium and Chlorine ions. What does the SWG...

This past Spring I brought my pool's borate level up to 30 ppm and salt up to 1000 ppm. I've noticed that the pool remains crystal clear even if the chlorine levels drop way below recommended. Yesterday I tested and the chlorine was 0 ppm on the Chlorine Drop test. But the pool was crystal...

We've been using some borax for many years because it helps us keep the pool clean easier; e.g., no ugly water line ring to scrub away. This year we decided to borate the pool to 30 ppm when we opened it in May. Unfortunately we haven't been able to use the pool yet this year because of all the...

A clear and sparkling explanation! Thank you Richard!

I decided to raise my pH with Soda and found that Jason's Pool Calculator recommends using Washing Soda, which is Sodium Carbonate. But in the section for Total Alkalinity, the Pool Calculator recommends using Baking Soda, which is Sodium Bicarbonate. I tried searching this forum for an...

I've been using Borax for at least 5 years now. I started using it as a pH increaser after reading Ben Powell's web page on it. I remember the first two things my wife and I noticed was that we had much less algae, AND the vinyl liner was squeaky clean! Also, the usual scum line at water's edge...

Great price, Brian! So you got it for 2.54 / ( 76/16 ) = $0.53474 / lb. = $2.67 / 5 lb = $13.37 / 25 lb. Certainly a bargain compared to http://www.cqconcepts.com/chem_sodiumborate.php prices of $11.38/5 lb and $33.08/25 lb.

A quick search for "20 mule team borax" on Google results in prices of $4.09+/76 oz. I think local supermarkets sell for less than this. http://www.cqconcepts.com/chem_sodiumborate.php lists two prices: $11.38/5 lb and $33.08/25 lb. The Google price per 5 pounds is 5 * 4.09 / (76/16) = $4.30 /...

What does "Balanced" mean? (second image) Does it have something in it besides bleach?

No. In the photo with the house most of the visible trees are deciduous; a couple of maples and a lot of oak. In the other photo there are forsythia bushes along the fence (resplendent with yellow in the spring), with oak and pine in the background. I like blue spruce too!

My pool owner's manual contains a copy of the National Swimming Pool Institute's Suggested Minimum Standards for Residential Pools Compliance by January 1, 1974. Section 9.1 states, "A recirculation system ... shall be provided for complete and continuous circulation of water through all parts...

Ben Powell's old PoolForum.com used to have a page on swimmers ear. I can't bring it up directly any more, but here's a Google cached page.

I wonder if that's still true. Use to be, I know. Does anyone know for sure? Maybe I'll call the electric company ...

I just priced bleach in Nashua, NH. The local Market Basket supermarket had their own brand of 5.25% at $1.50 / gal. Costco warehouse store had 546 oz (box with 3 jugs) of 6% Chlorox Regular Bleach for $6.59. Naamco Pool Store, sells 5 gal plastic kegs of 12.5% for $13.99. Using a spreadsheet, I...

So I should run my pool 31326 gal / 96 gpm / 60 min per hour = 5 hrs 26 min. But that's assuming perfect replacement without intermediate mixing; so what kind of fudge factor should I multiply by? Also, is any particular time of day/night a pump should be run? Is it cheaper to run it at night?

Should this chart be modified when using borates? I believe elsewhere it is said that borates act to retard algae growth, so they reduce the need for FC. I'm currently trying to lower my TA so I can add more Borax to bring them to the recommended 30-50 ppm.

Home built return venturi aerator Here's another one: http://whom.co.uk/pond/venturi.htm

Another thing I've thought about is using a pond bottom bubble aerator, or its less costly cousin the large aquarium aerator with bubble stone(s). These would probably be faster, but unless you already have these hanging around in your garage, both of them are too expensive compared to the $20...

Put a nozzle on it and set it to a wide spray and you have a fountain! But where's the water coming from? Do you have the hose connected to your pool pump? The Kokido K-385 is a very nice $20 waterfall fountain I just purchased at Naamco Pool Store in Nashua, NH. It attaches to a pool return...

BBB = Bleach, Baking Soda, and Borax; right? Pretty simple. Borax to raise the pH w/o raising the TA. Right? Now you're saying that's not right, now you're saying establish a constant level of borates and keep it there. How do you then raise the pH? Aeration? And then we need to lower pH...

I just read the rules about signatures, so updated mine.

Below are pics of our pool. A basic liner, it's where our 3 kids learned to swim (and a few friend's kids and grandkids). We're on our 2nd liner, but our "kids" are now 28-34! Hoping our grandkids learn to swim in it too (our "kids" need to hurry up, though!).