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Complete Purasan EX Treatment System - 12V
Raritan Purasan Waste Treatment System is suitable for all marine sanitation needs. The Purasan EX was originally developed for the freshwater lakes in Kentucky as an alternative to the Lectra/San.
This Type I Marine Sanitation Device (MSD) has become increasingly popular with many users in both salt and freshwater. Raritan believes that treating a single flush at the source and discharging into tidal water is far more effective than risking having a holding tank dumped overboard when a pump-out cannot be found or is not functioning. Each user has unique needs when boating and for many a holding tank may be the best solution while some prefer to treat and discharge. There are a few things to consider when choosing a Type I MSD.
While Treatment is required inside the three-mile limit there are areas that prohibit discharge from Marine Sanitation Device. The areas that do not allow discharge of any type are called No Discharge Zones and these zones are specific, at this time, to treated black water only. So, any vessel operator or owner should consider the amount of time spent cruising, the areas in which they will be cruising and the availability of pumpouts. A holding tank should never be discharged overboard.
The Purasan EX is a flow through system which means that the toilet is connected to the tank and the tank is connected to the thru-hull. With each flush of the toilet the waste enters the tank where a small amount of disinfectant is introduced to neutralize the waste. At the same time an equal amount of treated waste is forced out of the tank and overboard.
Purasan Improvements
The tablets used are very similar to the mixture used in commercial waste water treatment plants. When the toilet flushes a small amount of water is run over the tablets to create a disinfectant that drains into the tank and a high-speed macerator inside the tank breaks down waste and ensures that the disinfectant comes in contact with the waste. This system does require the user to buy tablets to keep the system functioning properly. While the original Purasan remained largely unchanged for a long time the newest version the Purasan EX has added a control that will notify the user when tablets need to be added.
Another improvement in the Purasan EX over the original design is the addition of an air pump that forces the water down into the treatment tank. This makes mounting of the system easier and prevents the tablets from disintegrating too fast. While it was originally designed for just freshwater use and for use with specific toilets it can now be used with almost any marine toilet. The only freshwater required is the water that passes over the tablets. However, toilets can flush with either salt or freshwater.
FAQs
Product & Usage
1. Is your gear authentic and warranty-backed?
Yes — we are an authorized US dealer for 300+ marine electronics brands. Every order ships with the manufacturer’s full warranty.
2. Are these products beginner-friendly?
Yes. Our products are designed for both seasoned boaters and first-time owners. Each unit ships with a manufacturer manual, and we’re happy to answer setup questions over email.
3. Are these products built for marine conditions?
Yes. Marine electronics are engineered for saltwater spray, vibration, and weather. Check the product specs for IPX waterproof rating and saltwater certifications.
Maintenance & Accessories
1. What maintenance does marine electronics require?
Rinse with fresh water after saltwater exposure, store in a dry place, and follow your manufacturer’s cleaning and storage instructions.
2. Can I buy replacement parts and accessories separately?
Yes — we carry replacement parts, mounts, transducers, cables, and accessories for the brands we stock.
3. Do you provide product manuals or installation guides?
Every product ships with the original manufacturer’s manual. Digital copies and detailed installation guides are typically available on the brand’s website.
Warranty & Guarantee
1. Does my purchase include a warranty?
Yes — every order includes the full manufacturer warranty. Coverage length varies by brand (typically 1–3 years for Garmin, Lowrance, Raymarine, Simrad, Humminbird, Furuno, and others).
2. How do I register for warranty coverage?
Register directly with the manufacturer using your unit’s serial number. Manufacturer registration is the fastest path to warranty support if you ever need it.
3. What does the manufacturer warranty cover?
Defects in materials and workmanship under normal use. Damage from impact, improper installation, or saltwater corrosion (without protection) may be excluded. Check brand-specific terms in your unit’s documentation.
4. Can I extend the warranty?
Some manufacturers offer extended-coverage programs through their registration portals. We don’t sell third-party warranty programs.
Purchasing & Support
1. How fast does my order ship?
Orders placed before 4pm EST Monday–Friday ship the same business day via UPS from our NJ or FL warehouses. Continental US delivery typically takes 3–7 business days for Economy.
2. Do you offer bulk or fleet pricing?
Yes — we offer volume pricing for fleet operators, marinas, dealers, and commercial customers. Email support@marineelectronicsdepot.com with your needs.
3. How can I contact support?
Email support@marineelectronicsdepot.com or call during business hours (Mon–Fri 9am–5pm ET). We’re happy to help with pre-purchase questions, order status, or post-sale support.
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