Fluidmaster 8300P8 Flush ''N'' Sparkle Toilet Bowl Cleaning System Save 43% Off

• Fights stains with every flush, leaves bowl crystal-clear
• Isolates bleach from the tank water so tank parts aren''t damaged by the detergents or bleach used by other in-tank cleaners
• Injects bleach-treated water only to the bowl where it''s needed, so application is efficient, not wasteful
• Leaves no residue and adds no bleach to the tank water that can damage parts or hinder operation
• This item is not for sale in Catalina Island

I''ve been using these in my home for several years now. My wife used to insist on throwing those bleach disk things into the tanks of all our toilets, which caused me to have to replace the flapper valves at least once a year as they got brittle and stiff in the continuous presence of oxidizer in the tank water. I was quite happy when I found this cleaning system at a local store as an alternative. The bleach is added to the water that is sprayed into the standpipe and ends up in the bowl; none of it goes into the tank to ruin the valve, flapper, or other parts.

Installation was very simple. You don''t even have to shut off the water supply. I did six of them in less than an hour altogether. Replacing the cartridges is simple.

I was afraid the cartridges wouldn''t last very long, given the number of users in our house (and a number of them small children who tend to use the toilet more often), but even if our highest-use toilet they seem to last three to four months. On our lower-use toilets, I get the blue ones so I can tell when they''re running out. The high-use ones gets the bleach cartridges and I just replace them every three months or so. Occasionally I get in to replace one and find it still has a fair bit of material left in it; I just leave those for another month or so until it is all gone, or nearly so.

My wife likes these almost as much as I do; she thinks this system works better than the disks you drop in the tank (which makes sense; the cleaner/bleach is concentrated in the bowl where it''s needed, not sitting in the tank where some of it will pass through the bowl but most of it will go right down the drain), so we''re both happy.

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I agree with those who believe that this product is superior to the drop in chlorine pucks. Here is how to make it more economical. Use up the cartridge that comes with the cleaner kit, then remove the used cartridge and with a hacksaw blade or serrated similar carefully cut off the top of the cartridge at top of the first line of perforations and using a flat file smooth at the cut line. Then discard the bottom of the used cartridge. You now have a usable cap with a seal. Buy several pounds of 1" chlorine swimming pool stabilized chlorinating tablets. drop three of these into the unit chamber and seal with the cap. Does the same job at a much reduced cost.

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I am writing a review of three toilet cleaning systems I''ve bought here on amazon:

Fluidmaster:

Uses a cartridge containing a chlorine based tablet.

Cartridge is not meant to be refilled.

Chlorine odor noticeable in the bathroom.

Cartridge can be modified (I used a dremel) so it is easily refilled.

NeverScrub:

Uses a cartridge containing a chlorine based crystal.

Cartridge is not meant to be refilled.

Chlorine odor noticeable in the bathroom.

Kaboom:

Does not use a cartridge. Bromine tablet refill inserts directly by unscrewing a cap.

No odor noticeable in the bathroom.

All three of these systems work the same way and all are really easy to install. All of them put a toilet cleaning chemical (tablets or crystals) in-line between the water fill valve and the toilet bowl fill pipe. All of them prevent the chemical from getting into the tank water (so there is no damage to the plastic parts in the tank). All sell refills for their systems. All keep the toilet bowl equally clean for about 1-3 months depending on how often it is flushed.

Amazon also sells Pool/Spa Cleaning Chlorine and Bromine tablets, which as far as I can tell do just as good a job keeping the toilets clean as the refills but at a fraction of the cost. I have tried all of the following, each of which provide enough tablets to keep all the toilets in the house clean for 10 years and they are all very cheap:

Kem-Tek 177:

The tablets fit well in the dremel-tool modified Fluidmaster cartridges.

The tablets fit well in the Kaboom.

The bathroom has a slight chlorine odor.

Spa-Kem 267:

The tablets are too large to fit in the Fluidmaster cartridges.

The tablets fit well in the Kaboom.

No odor.

Tropi Clear:

The tablets fit well in the dremel-tool modified Fluidmaster cartridges.

The tablets fit well in the Kaboom.

No odor.

Chlorine and Bromine are fairly equal in cleaning ability. Chlorine has that chlorine odor. Bromine is broken down by sunlight. Which is why, on a sunny day, outdoor pools use chlorine. But at night, or indoors, or on a cloudy day, they use bromine since there is no smell.

Summary. The Fluidmaster system works but the cartridges are expensive. To refill the cartridges easily requires a small modification with a dremel tool. The cartridge is too small for any tablets larger than 1 inch in diameter. The NeverScrub system also works but the cartridges are expensive. What I am using is the Kaboom system with the bromine tablets (either the Tropi Clear or the Spa-Kem 267) as they have no odor and clean just as well as the chlorine tablets.

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Excellent for removing ring around the toilet and keeping it clean without any extra work. Does not erode toilet working parts and yet does a wonderful job. Easy to install, replace cartridges, and maintain. Investment for long term use. Highly recommended for home use.

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These work great!

Use the bleach type cartridge.

Order several refills when you buy the unit to save shipping costs in the future.

Simple to install.

Works fine, lasts a long time........