Dometic (logo) Sanitation Systems

VacuFlush® Use and Care

VacuFlush toilets are easy to use.

  1. Lift pedal or handle to add water to bowl. Generally, water is added when flushing solids.
  2. Push pedal or handle down to flush. Hold pedal down for three seconds to assure thorough flush (less water can be used when flushing only liquids). For electronic Flush and Forget®* toilets, the flush ball automatically stays open for three seconds.
  3. Release flush pedal, allowing it to snap back into proper position. Bowl refills for next flush.

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Use only rapid-dissolving tissue.

VacuFlush systems are designed to handle effluent and rapid-dissolving toilet tissue. Non-dissolving items such as feminine hygiene products, paper towels, facial tissue, some household toilet tissues* and other paper products may cause plugs.

If leaving the boat for an extended time…

Sanitation discharge lines should be cleared if the boat will be sitting idle for an extended period of time, and at least once a month if it is regularly used. Here’s how:

  1. Fill toilet bowl with water.
  2. Add ½ cup of liquid laundry detergent.
  3. Flush toilet, allowing water to flow for about 2 minutes. Close flush ball.
  4. Completely pump out holding tank.

Cleaning the toilet and bowl seal

SeaLand® vitreous china toilets should be cleaned regularly for maximum sanitation and operational efficiency. Clean it just as you would a household toilet. Do not use caustic chemicals, such as drain-opening types, as they will damage the seals.

BOWL CLEANING: For stubborn stains, use SeaLand Bowl and Seal Cleaner (Fig. A). It’s manufactured especially for use with all Dometic toilet brands. In certain locations where water is hard, a buildup of lime may dull the toilet bowl finish. Restore the shine with this SeaLand cleaner. If you cannot find it in your area, contact Dometic for your nearest dealer. It is not necessary to scrub vigorously. Please follow label instructions.

 

AGloved hand squirting SeaLand Bowl and Seal Cleaner into toilet bowl

SEAL CLEANING: After an extended time, mineral deposits from hard water can build up under the edge of the rubber bowl seal, resulting in a slow leakdown of water from the bowl. To prevent this mineral buildup, periodically clean under the bowl seal with SeaLand Bowl and Seal Cleaner (Fig. B).

 

BGlovd hand scrubbing toilet bowl seal with SeaLand bowl and seal cleaner

  1. Shut off water supply.
  2. Apply cleaner onto a brush or other cleaning tool, open the flush ball by pressing on flush lever, and scrub under the seal. Make sure to push bristles between bottom of seal and top of flush ball surface to scrub all parts of seal that come into contact with flush ball.
  3. Close ball and wait 2 – 3 minutes.
  4. Open flush ball. Use brush and water to rinse away cleanser and loosened deposits.

Winterizing the sanitation system

At the end of each season, the toilet and sanitation system should be winterized for storage by either draining or using potable water-safe antifreeze.

To drain:

  1. Thoroughly flush system with fresh water.
  2. Empty holding tank.
  3. Shut off water supply to toilet(s), and remove inlet waterline (Fig. C). Do not remove brass cap on bottom of valve.
  4. Press flush lever until all water is drained from toilet(s).
 

CHand removing inlet waterline

To use antifreeze:

  1. Drain potable water tank.
  2. Add freshwater antifreeze to potable water tank.
  3. Flush potable water antifreeze and water mixture through toilet(s) and into the waste holding tank. Each installation is different, so amounts may vary. User discretion is required to assure adequate protection.
  4. Empty holding tank.

NOTE: Use nontoxic antifreeze designated for potable water systems. (See vehicle owner’s manual.)

CAUTION: Never use automotive-type antifreeze in freshwater systems.

SeaLand Holding Tank Care Guide

Holding tanks offer the most pollution-free alternative in marine sanitation systems. When used and maintained correctly, they never interfere with boating pleasure. This downloadable guide, the SeaLand Holding Tank Use and Care Guide, describes operation and routine maintenance procedures to help you – and the environment – realize the fullest benefit of holding tank systems.

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