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Mar 19, 2015
My Pool Chemical Page
by: Anonymous

It is my pleasure to communicate with you.
I've sent you water chemical by page as you wanted me but there was problem with sending it.
So I prefer to send it by this mail again. because I need your help.

This pool is newly opened and we've not used any chemical like algaecide or other chemical yet When we added chlorine for the first time, water turned to green. I want to assure this proplem is from Copper? As the analydsis shows there is copper Cu (ii) in well water.

Analysis well tube:
Anions mg/l
Total Alkalinity As CaCO3 300
Alkalinity P As CaCO3 10
Alkalinity M As CaCO3 290
Bicarbonate HCO3 2- 270
Carbonate CO3 2- 20
Hydroxide OH- 0
Chloride Cl- 24
Sulphate SO4 2- 32

Sulphide 0
Nitrate NO3 2- 23.4
Floride F- 0.58
Nitrite 0.005
Phosphate 0.52
Barium 0.46
Bromine 0.56
Total Hardness As CaCO3 195
Calcium Hardness 109
sodium 65
Potassium 3.6
Calcium 44
Chromium 0.01
Magnesium 22
Ammonia 0.14
Mangeness 0.001
Copper 0.32
Aluminium 0.01
Total Iron 0.04
Arsenic 0
silica 14.5
TDS 401
pH 8.01

Thanks very much for your helping

Thanks for the readings. What was only needed was the chlorine, pH, alkalinity, hardness, stabilizer, and metals but these fill in more gaps. The readings do show copper, Magnesium, and Mangeness. I can give you a rundown on the chemicals you'll need but I'm not too sure their availability to you.

The reason the water turned green when chlorine was added was because of the metals in the water. If you're using calcium hypochorite (granular chlorine) I'd suggest switching to liquid chlorine. If you don't have that you can use grocery store bleach. It's the same thing as chlorine just a bit weaker. Next is to get a metal sequestrant. This product doesn't remove metal from the water. It holds it in solution until it can get filtered and backwashed out. Metal sequestrants that are based on HEDP, phosphonic acid and/or its derivatives are the most effective. Some popular brands are Jack's Magic Blue, Purple, and Pink Pink Stuff, Metal Magic, Metal Free, & Metal Klear. This is normally not a one shot deal. Because metal sequestrants break down over time and get filtered and backwashed out, you will need to add a bottle once per week.

The stabilizer level (CYA/cyanuric acid) level wasn't given but I'll assume the pool has none. The level is 30 - 50ppm. You can get either liquid or granular stabilizer. To add it, simply put it in the skimmer with the filter on for 3 - 4 days. Granular stabilizer takes a little while to dissolve. Add 1 pound per 10,000 gallons to increase the CYA to 30ppm. The size of the pool wasn't given and I'm not sure the kind of weight system you use, either our system or the metric system, or whatever, but you can simply go on the internet to convert the amounts. Once you reach the 30ppm CYA mark you can stop using it and then test it once per month.

Next is you need to get the TA (total alkalinity) and pH down. They're very high. The TA range is 80 - 120ppm and the pH is 7.2 - 7.8. Decrease these using muriatic acid. Use 13 oz. per 10,000 gallons to reduce the TA 10ppm and the pH 0.2. Pour the acid around the perimeter of the pool, sweep very well, filter for 24 hours, retest and make another adjustment.

The hardness is fine so no need to make any adjustments on that.

To sum it up:

1. Add sequestrant
2. Add the CYA
3. Add acid
4. Keep filtering and backwash once per day. If you have a cartridge filter spray it out once per day.
5. Once the CYA, pH, and TA are good you can shock the pool with liquid chlorine. It's 1 gallon per 10,000 gallons.

Don't worry too much if the pH get down around 7.0. You need this for a good shock. It can also be brought up using Soda Ash. this product increases the pH without much happening to the TA.

Remember to test once per day and be patient. After following the steps above your pool should be ready to go.

If you feel your situation is more complex than this, I do phone consultations for a donation of your choice. It makes things go much faster and many people have found it extremely beneficial, saving them time and money in the long run. All your questions will be answered. I have nothing to sell you so you know I'm not bias.

Pool Consultation

Hope this helps and have a great Summer.


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