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Hello, I have some old bags of sodium bicarbonate that are hard as bricks, I'd like to get rid of them( not in the pool), but how do I safely dispose of these? I also have cal-hypo that needs to go, do I bring this stuff bAck to the pool store to have them dispose of it? Thank you for...

Hello, THis is such a great site, I've learned so much about pool care on here. Thank you to all of the wonderful contributors! I have an indoor pool with dull water. It is not cloudy because I can clearly see the main drains, but the water just looks "flat". It has been...

Hello, Doing a backwash today at an indoor pool, the water coming from the backwash line was soapy-like bubbly soapy. It was definitely soap because I filled a bucket with the backwash water and it was soapy...pool is hazy. ONly chemicals added ever are: sodium hypochlorite, acid magic...

Hello, everyone, Reading about ORP on another thread brought up some of my own questions. First, what is the ideal ORP range for swimming pools? The WHO says that 650mV is suitable for drinking water, than why have I seen pools with ORP setpoints at around 525mV? ANd how would you...

Hello, An indoor pool had a combined chlorine reading of 1.5. The pool is 11,730 gallons. I added 1 gallon & 1qt of liquid chlorine(12.5%) to it, to bring the level up to 15ppm. The FC before shock was 1.5ppm. Well, about 15min after adding the bleach, I tested the water and the...

Hello, An indoor pool that has NO exposure to sunlight was drained, and refilled, but, the water has a greenish tinge to it. The pool's liner is white. Upon filling up, the first thing added to the pool was chlorine, and large amounts. THe water was not treated with metal out or ever...

Hello, I have algae growing on my stairs, and various cracks in my pool. The FC is currently at a 2.8ppm & the TC is 3.9ppm pH: 7.4ppm This is an indoor swiming pool and the FC does not dip below 2.0ppm I treat the pool once a week with Pool Perfect-Phos Free and I see no...

Hello, In my commercial pool, the media in the sand filters was recently (2 months ago) replaced with Zeosand. Prior to this replacement, sand was blowing through my returns after every backwash and during normal filter mode. TONS of sand at each return. It ws deemed that a broken...

Hello, My alkalinity has been on the rise, it went from around 100ppm to 140ppm in the past few weeks. I've been adding MA on a regular basis to try to lower it, I get it down to around 100, and by the next morning, it's hovering between 120-130ppm. I wait 2 hrs after adding MA before I test...

Hello, everyone, My TA went from the low 100's (100-107ppm) to 194ppm this morning !? I test the TA everyday, so, this was a surprise. I re-tested it in different areas (pump runs 24/7), and still came up with results greater than 120ppm. The pH was a 7.4, FC: 3.06, TC: 3.23...

Hello, first off, this is such a wonderful site, I've been learning so much! Thank you, everyone! :) I have some metal stains in my pool from hairclips, things like that...will vitamin C tablets help to lighten the stains or should I use something else? Where can I find these tablets? Thank...

I have a pool where the levels are well maintained: FC=3.0 on a regular basis pH=7.4 Alk= 105 CH=290 The problem is that green algae grows in the seam of the pool(this is a plaster pool) and on the corners of the steps. The FC is maintained at a 3.0, the pool is brushed w/a metal algae brush...

When adding chlorine nuetralizer to the pool, what is the best method for adding it? I know that it should not be put into the skimmer, should I sprinkle & brush it around the pool?how long does it generally take to work?

I have an indoor swimming pool with a retractable roof, since the weather has been gorgeous, I've been opening the roof. However, my CYA registers as "Low" on the LaMotte ColorQ & as soon as the roof is open, the FC drops drastically. I'm using sodium hypochlorite & I have a chemical controller...

I have a Pentair WhisperFlo, 2.0Hp. There is constantly air in the pump basket, lots of little bubbles. I believe that this air is coming from the suction side. I see no leaks in the plumbing or the pump. The O-ring is lubbed & there are no visible cracks in the tip. Any ideas as to what can be...