Recent content by Ibelyle

I appreciate the reminder.

This was a new install w/ 0 salt. Using algebra (for the first time in years) based on the 267 lbs / 10k = 3200 ppm formula, I came up with 19,692 gals. I use a Lamotte Pocket Tester and calibrate it with a 3000 ppm standard. It has alway proven quite accurate and very convenient. It is with a...

Recently, a pool owner advised me that his pool held about 28,000 gallon. I added 640 lbs of salt aiming to establish the level at slightly less than 3200 ppm. 48 hours later the water tested at 3900 ppm. Using the 267 lbs/10k gallons = 3200 ppm, I arrived at +/- 19,700 gallons as the actual...

How much water was taken out when the pool was closed last fall? How much rain, snow fell in the meantime. What kind of cover, if any? If solid tarp, did you pump off the collected water or dump it in the pool?

640 lbs of salt resulted in 3900 ppm. How many gallons? (Owner told me pool was 28,000)

Sodium bicarbonate has a ph of about 8.0. How will it lower his ph?

A drop of thiosulfate before adding the reagent will avoid any interference with the test. Meanwhile a high ph (8.0) will greatly reduce the effectiveness of chlorine.

It appears that you have a new test kit, but don't see any mention of your Ph or total alkalinity. You have been dumping gallons of sodium hypochlorite into your pool, which must have raised the ph considerably. If your ph has been over 8.0, then all of that chlorine was only about 20% as...

Good evening Chris, Notwithstanding my profile, I have been a member for quite some time. I've been in the business for more than 30 years, and now have a small service company. Long story short, every one of my customers get a recommendation to join TFP. In fact, I would refer pool owners to...

I'm not going to attempt a calculation w/o a floor diagram detailing all transitions for the hopper. However, typical liner specs for rectangular pools result in +/-: 16x32 @ 18K gallons; 18x36 @ 24K. gallons; and 20x40 @ 28K gallons. Even with the shallow end extension, and allowing some...

Is 4' the depth of the pool, or depth of the water in the shallow end. Most vinyl pools are only 40" when filled to half way up the skimmer/s face? Then calculate the surface area of the pool. I would estimate a small deduction for radius corners, but you can use the radius to calculate the...

Unfortunately, you were advised to keep scrubbing & scraping long after your initial efforts didn't work. I would never use anything more abrasive than a 3M scrubbing pad, and not for aggressive or prolonged scrubbing. What you are doing is seeking a remedy without knowing what the problem is...

I have had some success reducing CYA w/ Bio-Active. Is there any reason it hasn't been suggested in this instance?