You need one unit for each Jabsco Pumpgard in-line strainer that services your toilets. Usually, one strainer services one pump that services one toilet. However, sometimes one strainer services two pumps. For example, the Leopard 46 has four toilets served by two strainers - in that case, you would need two units.

We realize that a fresh water flush system can also have an odor problem, though nothing as bad as a seawater system.

Our concern has always been the possibility that the chlorine could leach back into the potable water. If you boat mechanic can confirm that this is not at all possible, then it should be alright to use in your fresh water system.

In heavy charter use, tablets typically last about 7–10 days. For private owners who live on their boat typically 3-4 weeks. Some For convenience, we recommend coordinating tablet replacement with routine filter cleaning.

No. You should use only one tablet at a time and do not replace until completely dissolved.

Yes. As part of odor control, calcium scale inside plumbing lines gradually dissolves. Unlike bleach, the tablets are slightly acidic, which helps solubilize calcium deposits — similar to how vinegar removes calcium buildup.

Look at the pictures under The Calcium Problem tab. The picture on the left was taken from a plumbing line on a 58′ catamaran after a year of heavy charter use. The picture on the left shows a plumbing line from a similar boat, over the same period, that did not use The Commoderizer

No. Use only one tablet at a time and do not replace it until it has completely dissolved.

We cannot guarantee performance when tablets not supplied by us are used. Our tablets are specifically tested for compatibility with the unit, and other products may produce unpredictable results.

We do not recommend operating without the limiter under normal conditions. However, some users temporarily remove it and flush several times to accelerate initial scale reduction. The limiter should then be reinstalled for regular use to maintain proper concentration levels.

Always follow the safety information printed on the product packaging. Tablets are double-packaged for safety and convenience. Store tablets in their original container and keep out of reach of children. description

No. The system is designed to eliminate the need for additional treatments. In fact, mixing other chemicals with the system should be avoided as this may be hazardous.

No. Do not add other chemicals to the Commoderizer unit, toilet or holding tank while using the system. Additional chemicals are unnecessary mixing chemicals may be hazardous.

Very little. The unit is constructed from durable PVC, the o-rings are chlorine resistant viton, the check valve spring is made from Hastelloy, and the filters are polypropylene. All of the components are designed for chemical and saltwater environments. For specific maintenance questions check out the “Maintenance” page.

Each jar of tablets holds 15 tablets, enough for about a year per Commoderizer for a private owner or about 6 months for continuous heavy charter use.

We take great care in packaging our tablets to prevent chlorine fumes and odor. Each tablet is individually wrapped and placed in plastic jars with a lid seal.