I tried these when I first got my apartment and they're quite terrible. I smell is overwhelming and very off-putting. I was also very disappointed because these didn't clean very well either. I wouldn't recommend trying this. There are other brand that have similar products that work way better.

I have just moved into a house with hard water. Everything in my house was remodeled and I wanted to keep my toilets sparkling! The product removed the hard water stains and also RUINED the rubber flapper on BOTH of my toilets. I had to replace them both at the same exact time. Nowhere on the box does it warn about this!!!

They do NOT last 3 months like the box says, I feel like 2 weeks max is much more reasonable. I don't use this often but definitely once a month. Not 100% sure how affective they are as there is no HUGE difference, I'm just doing it to maintain a clean and sanitized toilet. Price is okay.

We have terrible public water and all four of our toilets have nasty rings from the water and blue stains/lines from whatever the previous owner used. The Clorox tablets seemed heaven sent until all the tanks started leaking. Our plumber said the tablets ruin/prematurely age the rubber flapper. For the price of a plumber, I can scrub. Hate the work. Wish the tablets could work without expensive side effects.

Clorox Ultra Clean Toilet Tablets kill 99.9% of bacteria and deodorizes your toilet with the power of Clorox bleach. This toilet bowl cleaning tablet, effectively cleans and prevents stains with each flush, eliminating the need to scrub every time. Each tablet delivers a long-lasting bleach clean and is good for up to 3 months. Simply drop a tablet into your toilet tank to continuously sanitize, deodorize and clean your toilet every time you flush. The dissolvable cleaning tablets help prevent tough stains and removes hard water, mineral deposits and limescale stains. Keep your toilet bowl sparkling fresh and ultra clean with no mess and no fuss with the help of Clorox Ultra Clean Toilet Tablets. ULTRA CLEAN TOILET BOWL TABLETS: Kills 99.9% of bacteria, and continuously sanitizes, cleans and deodorizes your toilet bowl with each flush; Packaging may vary BLEACH TOILET BOWL CLEANER: Toilet bowl cleaning tablet cleans your toilet and leaves your bowl sparkling fresh and smelling clean for up to 3 months PREVENT STAINS: Dissolvable cleaning tablets help prevent tough stains and removes hard water, mineral deposits and limescale stains, with the power of Clorox™ bleach DEODORIZES: Each tablet sanitizes the toilet bowl water in 5 minutes for 6 weeks to keep your toilet smelling fresh and sparkling clean with every flush EASY TO USE CLEANING TABLETS: Simply drop tablet into tank for an ultra bleach clean that keeps the dreaded toilet ring away and helps extend the time between deep cleans

These are pretty good. You clean the toilet bowl first, then add the puck to the tank. I haven't had any calcium or grime build up since putting them in 8/4/22. I'm sensitive to odors and noticed they did have a strong chemical odor the first week. I could smell it as soon as I walked into the bathroom. Now I don't notice the odor except when I flush.

When my husband and I moved into our house, we quickly noticed that all of our toilets would get this black mold in the bowl, even after having just cleaned them a few days before. It was so aggravating and I was trying everything! Chemicals, home remedies, nothing worked. Finally I tried these tablets and OH MY GOSH I can't believe how well they work!! I haven't cleaned my toilets in 3 weeks and they're STILL sparkling clean. I can never go back to how it was before. These tablets made a HUGE improvement on the cleanliness of our toilets!

Bleach corrodes the components in your tank. Do some research online. Yes the cleaning power of bleach is great, but at what cost? If you don’t mind a leaking toilet and replacing it ever few years, this is for you. Otherwise just clean your toilet regularly.

I use this product in both bathrooms in my house (soon to be three) and I have never had an issue. I see people complaining about this product causing damage to rubber parts after two weeks or miraculously removing blue rings in toilets from previous owners then eating the rubber. Having problems after two weeks is a coincidence. Blaming this product is scapegoating for either using inferior replacement parts or for a part that failed because its time had come. And if you need to remove blue ring stains from a toilet bowl what quality of parts were used by all previous owners? The manufacturers of replacement parts for toilets know what’s being used and use chlorine resistant rubber or equivalent compounds to eliminate the hazard. The use of OEM parts is so important. Stop trying to save 30c and purchase quality brand name manufacturer replacement parts. Knockoffs are called knockoffs for a reason. This blame game is unnecessary and you can return to your regularly scheduled program and flush with confidence! Clorox is on the job after you’ve done yours.

[This review was collected as part of a promotion.] I am an avid Clorox product user and am typically happy with the products. However, I purchased a faulty tablet as it did not dissolve and it got stuck underneath the boot of the tank causing the toilet not to flush properly until the plumber removed the toilet to find the undissolved tablet. I will not be purchasing this product anymore. I'm pretty disappointed.