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What does the percentage of sodium hypochlorite on a bottle of bleach or chlorinating liquid mean, by weight or volume? Ive looked on a bottle of bleach but it doesnt specify. Sodium Hypochlorite .... 5.25% - (5% available chlorine) Sodium Hypochlorite .... 6% ---- (5.7% available chlorine)...

What is the "chemical" formula for figuring ppm for borates as far as a chemistry perspecitve? I understand they are equivalent or measured in borons, such as on a test strip but I cant figure out where the numbers are coming from. Here is an example (calcium hardness) of what Im looking for...

Well diving deeper into more chemistry. Im looking around at what total alkalinity actually measures and find this page which kind of explains it to me. http://www.advancedaquarist.com/2002/2/chemistry 1) So when using Sodium Bicarbonate, the bicarbonate is the only part that puts TA in the...

Im looking around the MSDS sheets of different pool products and figure out they name the exact same chemical different names. The only way to distinquish if they are the same is the CAS#. However I find some with different CAS#'s which would mean they are of a different makeup. Dichlor...

Thanks to the helpful and knowledgeable people on this forum, I created a calculator to figure up the cost of adding things. It may seem a bit advanced for new people so it has some instructions. Its probably a little late in the season to do most people any good, but better late than never...

Im hearing about people using potassium chloride instead of sodium chloride for salt in the pool. Doing some looking around it appears to be a salt substitute and related to water softeners. How much potassium chloride does it take to get the same ppm of salt as if you were using sodium...

I am curious to see what others have for fill water and whether its city or well water.

I was PM Spammed by this person: tedphotin and this url:

I see on pool math there are two types of Calcium Chloride. One being Dihydrate and the other I assume is Anhydrous. Ive been looking around the internet and all I see is the Dihydrate type. Unless I'm wrong. The dosage amounts seem to line up with the Dihydrate dosage on poolmath at least. I...

Where is most peoples TA level when you have borates? Is there any need to have any TA since borates are a pH buffer? In my case that would not be possible since I have high TA fill water.

I decided to create a calculator to see what happens to the water chemistry when you add fill water. I figured I would share it with everyone. http://jfhtm350.webs.com/pool/FillWaterCalculator.html Comments welcome.

Just realizing there are a few different percentages of Dichlor products. You have: 99% Sodium Dichloro-s-Triazinetrione Dihydrate (55% Available Chlorine) 99% Sodium Dichloro-s-Triazinetrione (62% Available Chlorine) 99% Sodium Dichloro-s-Triazinetrione (56% Available Chlorine) 63.05% Sodium...

I was thinking the other day how a calculator like that would help me figure out where my TA was going to go after adding a few inches of fill water. For informational purposes I would have used it since I knew my TA was going to go up. Input your current test results, fill water test results...

Ive just noticed there is a big difference in amounts from the high side to the low side of the pH scale. For instance a 16100 gallon pool, TA 100, Borates 0, I have the following doses to lower pH with dry acid: ph 8.0 down to 7.8 = 9.9 oz weight ph 7.8 down to 7.6 = 13 oz weight ph 7.6 down to...

Going on vacation and decided to just cover pool. I have a timer on pump to run a little everyday with it covered. As it is now without a cover, FC=6, CYA=50, in full sun I loose 2 to 3ppm which would be about 50% loss in a day. Anyone know about what I would loose in FC with it covered with the...

If I mix 2 jugs of 8.25% bleach and 1 jug of pool water in a container and let it sit will the bleach settle to the bottom over the course of a week with no circulation? I believe this mixture is 5.5% bleach. The bleach and water will be mixed prior to sitting. I think I saw a description like...

Anyone know about how long it takes for a 3" trichlor tab to disolve in a floating dispenser? I will use them when going on vacation and need to do some calculating.

I have an old Pentair Dynamo 1HP that won't start on its own. http://www.poolsupplyworld.com/Pentair-340197-Dynamo-1HP-Single-Speed-Above-Ground-Pool-Pump-with-3-Standard-Cord-115V/340197.htm http://www.pentairpool.com/partslists/pumps-aboveground-dynamo-pump-54.htm Cant find an internal...

When someone posts on my thread the forum is not emailing me and letting me know. I have the thread setting on "Instantly Using Email". This has never worked as far as I can remember. What am I missing?

How many people actually open up their pool and not have to do anything with it and have perfect water chemistry? I did. Thanks to the knowlege of this website. Just a little info on my success: Last Fall: Got my water chemistry right (pH, TA, CH, CYA). Last Fall: Added algaecide (Alkyl (50%...

Is a Hayward S180T Pro Series (I think 18") sand filter big enough for a 24' round (14,500 gallon) AB pool and a 1 HP Hayward Powerflo LX Econo pump? My neighbor has this combo.

A little confused here about this Pool Winterizing Kit. The kit comes with the following items: Winterizing Powder (Alkyl Dimethyl Benzyl Ammonium Chloride & Sodium Carbonate) Non-Chlorine Shock Powder (contains Monopersulfate) Winter Stain and Scale Control Liquid (contains Phosphonates) My...

I have an AG automatic cleaner that was given to me. When I hook it up it just barely moves. You can hear it clicking, but dern its slow. Too slow to even use. I dont know the exact brand name of it but it is made like this one http://www.intheswim.com/Pool-Equipment ... y-Krauly-/ I had one...

You will just have to read for yourself. http://www.google.com/patents/US4793935 Anyone care to elaborate?

Ive been here a little while and Ive seen time after time someone wanting some help and not posting test results and someone trying to help them asking for them. Just over and over and over again. LOL. How about having a form to fill out that shows whats needed when posting a message, maybe...

I have always used a quat algaecide (Alkyl (50% C14, 40% C12, 10% C16) Dimethyl Benzyl Ammonium Chloride). I usually add some every week. Does it evaporate after a while or where does it go? Does it just build up if it doesnt get used up or what? Is there any side effects to it? I am also...

I too am getting signed off randomly. Using FF 21.0. I can sign in and in about 2 minutes open a forum page and I am not signed on anymore. I still have the cookies. Im using Selfdestructing Cookies addon but troublefreepools.com is in the whitelist. I dont have any trouble out of another forum...

Not necessarily a forum suggestion but a dern good one. Im going on vacation for 3 days and Im sitting here trying to figure out what my chlorine level is probably going to be when I get back. I thought maybe there should be a calculator for that. I know its not a fool proof calcuation, but Im...

Keep getting the black greasy looking substance in the skimmer. Mostly at the water line but some where the basket or attachment for the vacuum hose meets the skimmer below the water line. Ive read its a pretty common problem and couldnt find a definitive answer on what it is. Anyone ever try...

Just joined the forum and wanted to say hello and thanks for the information about pools. Anyone close to me here?