Rated 2.4 out of 5 by 14
Rated 5.0 out of 5.0 by Pat Effective product if recently produced
I took note of the June 29, 2014 comment by the reviewer from San Jose re: limited shelf life & the readily available date code on the box (2-digit year + 3-digit sequential day of production).
On July 26 my Glendale, AZ store offered boxes dated 16194 (Jul 12) and 16118 (Apr 27) so I bought the 14-day-old product, not the 90 d containers. 1.5 gal of chlorine was recommended by Leslie's Pool Supply, which raised the CL level from zero to 5ppm.
July 26, 2016
Rated 1.0 out of 5.0 by murf very weak
I normally use 2 gal. per week in my pool, bought hdx brand and had to use 6 gal. in 4 days
June 5, 2016
Rated 1.0 out of 5.0 by JV Really bad
I can confirm that it is really bad. One gallon per day for a small pool.
April 14, 2016
Rated 1.0 out of 5.0 by Dean How is HD selling this product
Unfortunately I wasn't aware of chlorine half life at the time of purchase. I have been managing my in-ground pool for the last two years with HD liquid chlorine as well as some other chlorine supplements. Last month my pool began having increased algea while using the same amount of chemicals. I ended up pouring more than 20 gallons of this chlorine in the last month without any success of clearing the water. I changed the filters, tested the water weekly, did all maintenance accordingly. Leslies tested and still showed low chlorine levels after 20 gallons of chlorine within a month! Won't be buying their chlorine any longer.
October 29, 2015
Rated 1.0 out of 5.0 by stoney67 Old chlorine is worthless!
As mentioned before, if it is more than a month old, it will have lost half or more of its strength. I found it at my local home Depot ( they must have had over 50 2 packs)-- not a one of them was less than 6 months old. At the full 10%, it's cost effective, but at 5% you'd be better off buying the 8.25% fresh at Walmart. Unfortunately, Walmart doesn't sell the hth 10% anywhere in South Carolina. Using the 8.25% in my 24000 gal pool, it will increase my free chlorine level 1ppm for 89 cents. It's just that to keep it at 3ppm I would be adding ~ 1 bottle/day or $90/month. How Depot needs to get rid of all is Old, and replenish worth fresh every 2 weeks.
October 24, 2013
Rated 4.0 out of 5.0 by Verified Reviewer Check the date code....
I need to clarify a thing or two. Yes, sodium hypochlorite has a half-life (shelf life). The higher the concentration, the shorter the half-life is. This 10% chlorine will lose half its concentration in 241 days at 80F. Normal bleach (Clorox) is typically 6-8.5% and will thus degrade more slowly.
I called the company to verify how to read their date code. The first two digits are indeed the year (14=2014). The next three are the day of the year (365=Dec 31st). Thus, pick the freshest you can find.
And, 10% is not a low concentration. It's a pretty decent one for a consumer product. Chlorine is a very potent chemical. That's why we use it as a sanitizer. The government won't let untrained people handle highly concentrated chlorine solutions for good reasons.
I also compared the price of this product vs Clorox sold at warehouses and it's extremely competitive.
May I recommend the TroubleFreePool website for more thorough discussion on pool chemistry? It's been invaluable to me.
June 28, 2014
Rated 1.0 out of 5.0 by PoolOwner Do Your RESEARCH!
After money wasted on numerous products recommended to me by pool store salesmen to "fix" my pool water issues, I've learned to 'do my homework and research '. One thing I've learned from that research is to simply read the labels on pool products before you buy them. If you simply click the image of this product, you can readily see the listed ingredients....THERE IS ONLY 10% OF THE MAIN ACTIVE INGREDIENT! This explains the reviews of the product being weak.
July 22, 2013
Rated 1.0 out of 5.0 by Locke Weak percentage
I thought I would try this out since the stated strength was 10% and the price was reasonable. Based on my experience the actual strength is probably around 3% so I'm back to good old Clorox.
April 27, 2014