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I've been suspecting that our inground gunite pool may have a leak. I searched this site and found the suggestion to do a bucket test. I have done two bucket tests. The first one indicated that there was approximately an inch difference over 24 hours between pool loss and bucket loss. I did...

I recently added "stain wipe - ascorbic acid alternative" to remove iron staining on our gunite pool. Worked like a charm, stains gone within the hour. I tested the water with my TF-100 test kit prior to adding stain removal and tested again 24 hours later. The first test showed that I had...

Our pool was replastered a year ago (March 2014). I was told to expect pH increase and large acid demand as the plaster cured. Reviewing my notes from last year, I typically added 2 cups of muractic acid daily to keep the pH around 7.5. This was continued up into the fall. During the...

Last week we noticed that the pool light had water inside the lens so we removed the light and opened. We inherited the pool when we bought the house last summer, so we didn't know that the light installed was a color changing light. Light worked but did not color change. I would like to...

Can someone show me the math to calculate how much a 3" trichlor tab gives in free chlorine. I've seen the "results" that tell me but I was curious about the calculation. I can figure out the CYA portion and how much it contributes in ppm, but I am missing something with the Cl and it is...

Hello, My pool was re-plastered in early March. The pool builders took care of pool for first two weeks with daily brushing and chemical additions. After handing back over to me, I have brushed at least twice a week and kept chemicals balanced. Below is the latest test results pH = 7.5 ( I...

Our pool was re-plastered in early March. The company that did the re-plaster took care of the start up. This included the 2 weeks of daily brushing and balancing of chemicals. After returning pool care over to me, I have continued to brush at least once a week, more like once every 5 days...

I'm having pool re-plastered next month. The pool guy recommended that I tint the plaster to help hide any stains that may occur over time. I can't find much info on the pros and cons of tinting plaster. The most I've seen are cons which involve poor mixing resulting in uneven shades when...

This was my first winter owning a pool. The original owners did not close the pool during winter and after seeing the cost of the safety covers, I decided to try this route also. I found that very little was needed as far as keeping chemicals balanced, 6 cups of bleach once a week at the most...

This is first winter as pool owner. Previous owners kept open during winter. Anything specific I need to know on pool upkeep. Same sample schedule? Same brushing routine needed. How much time to run pump during day. The water is now 56F and I have not lost any chlorine over 3 days, using...

We inherited a pool with our new house in August. I've had trouble with algae, water will be crystal clear for awhile, I'll brush sides and bottom and see a green film arise. Pool then turns cloudy green, and I'll SLAM again. I've done this three times. Granted, I may be messing up the SLAM...

Does water temperature have any effect on the TF-100 test kit results. The CYA test is the only one I have found through researching site, that should be allowed to warm to 70F before testing. My water is now 60F. This is my first winter with our inground pool that came with house. The pool...

I am getting estimates on having our pool replastered. We recently moved into our home that had a 13 year old pool. The pool had been painted about 5 years ago. I’m not sure why the previous owners decided to paint vs replaster. The paint is wearing off and the porous gunite material is...