Customer states that his wife went to the local pool store complaining of eye irritation in their 10k gallon in ground plaster pool here in South West Florida. Store employee tells her to stop using chlorine and fill the 3 inch chlorine tab feeder with bromine tabs and put several bags of salt into the pool (there is no salt system present). All is well for a month until the pool gets brown stains on the shell.
The call me and we decided that it should be a Chlorine pool with borates. The customer will not drain and refill with trucked in water (house is on well). I asks the customer to create some makeshift water features to cause turbulence, and do a 30% water exchange using their well water.
BR 2
pH 8.2
ALK 120
HARD 200
I add half a gallon of muriatic acid and return three days later to a greenish looking pool.
Chlorine 0
pH 8.4
Alk 150
HARD 200
CYA 50
Liquid chlorine 2.5 gallons and half a gallon of acid and I return the next day to a white but cloudy pool. Filter runs 24/7 and by day 3 of SLAM, pool is clear.
Day 4 Total chlorine is 5, Free chlorine is 2. pH 7.6 Alk 90, CYA 50, Hardness 200. 1 Gallon of Chlorine added.
My tech goes on day 10. Chlorine is 0 and pH 8. He adds 1.5 gallons of Chlorine and half a gallon of SULPHURIC low fume acid.
Day 16 (yesterday) client calls and says the floor of the pool is yellow, test strip says Chlorine is 0 and pH is extremely high.
I'm thinking that first of all, the pool was always in demand and I know these people were dying to swim in their pool so didn't give it a break. I also think the sulphuric may have reacted with whatever bromine was in the pool and caused the yellow. I'm hoping that when my tech gets up there and drops the pH with muriatic acid and adds liquid chlorine the yellow will disappear.
We have had unprecedented heavy rain over the last few weeks which, although cleans me out of chemicals, it gives me a TDS reset on the pools I service. I'm hoping for another round of downpours next week as far as this pool is concerned. I may consider increasing my threshold of CYA to 70 to allow me to use slow dissolving trichlor tabs in an effort to maintain chlorine but I WILL leave liquid chlorine there for the customer to put in as and when his test strip starts to show lower chlorine.
What say you?
The call me and we decided that it should be a Chlorine pool with borates. The customer will not drain and refill with trucked in water (house is on well). I asks the customer to create some makeshift water features to cause turbulence, and do a 30% water exchange using their well water.
BR 2
pH 8.2
ALK 120
HARD 200
I add half a gallon of muriatic acid and return three days later to a greenish looking pool.
Chlorine 0
pH 8.4
Alk 150
HARD 200
CYA 50
Liquid chlorine 2.5 gallons and half a gallon of acid and I return the next day to a white but cloudy pool. Filter runs 24/7 and by day 3 of SLAM, pool is clear.
Day 4 Total chlorine is 5, Free chlorine is 2. pH 7.6 Alk 90, CYA 50, Hardness 200. 1 Gallon of Chlorine added.
My tech goes on day 10. Chlorine is 0 and pH 8. He adds 1.5 gallons of Chlorine and half a gallon of SULPHURIC low fume acid.
Day 16 (yesterday) client calls and says the floor of the pool is yellow, test strip says Chlorine is 0 and pH is extremely high.
I'm thinking that first of all, the pool was always in demand and I know these people were dying to swim in their pool so didn't give it a break. I also think the sulphuric may have reacted with whatever bromine was in the pool and caused the yellow. I'm hoping that when my tech gets up there and drops the pH with muriatic acid and adds liquid chlorine the yellow will disappear.
We have had unprecedented heavy rain over the last few weeks which, although cleans me out of chemicals, it gives me a TDS reset on the pools I service. I'm hoping for another round of downpours next week as far as this pool is concerned. I may consider increasing my threshold of CYA to 70 to allow me to use slow dissolving trichlor tabs in an effort to maintain chlorine but I WILL leave liquid chlorine there for the customer to put in as and when his test strip starts to show lower chlorine.
What say you?