Masterflush MF7100 - Sanitary DOMETIC - Free user manual and instructions

Product type	Marine macerator toilet
Brand	Dometic
Model	Masterflush MF7100
Power supply	12V or 24V DC
Water supply	Fresh water or seawater
Flush functions	Normal flush, seawater flush, water addition
Macerator pump	Built-in, for waste maceration
Maximum lift height	1.2 m (total vertical loops)
Recommended toilet paper	Quick-dissolving (SeaLand type)
Routine maintenance	Biodegradable detergent without bleach
Protection during non-use	Drain water, cut power and water supply
Safety	Close valves when toilet is not in use
Warranty	Legal (according to country)
Customer service (France)	Dometic France, mail: [e-mail]
Spare parts	Flush button, electric motor, water valve, water impeller

Frequently Asked Questions - Masterflush MF7100 DOMETIC

How to flush the toilet in normal mode (fresh water)?

Press and hold the Flush button (2) for 10 to 20 seconds until waste is fully evacuated.

How to add water to the bowl?

Press the Water Add button (1) until the desired level. Do not hold too long to avoid flooding.

How to use seawater flush?

Open the seawater inlet and outlet valves. Press the Flush button (3) for 10 to 20 seconds.

What to do if the macerator pump makes an unusual noise?

This indicates a foreign object in the pump chamber. Close the valves and remove the object.

Why doesn't the bowl empty completely?

Check that the drainage pipe is not compressed or kinked, and that the vertical loop height does not exceed 1.2 m. If necessary, unblock the pump or pipe.

What to do if flushing does not activate?

First check if the waste tank is full (empty it). Otherwise, check the power supply, fuses, and flush buttons.

How to maintain the toilet during long periods of inactivity?

Add 118 ml of biodegradable detergent without bleach, flush five times, cut off water and power supply, then briefly drain water.

What type of toilet paper to use?

Use quick-dissolving toilet paper (e.g. SeaLand). Test by immersing a square: it should tear easily.

What should never be thrown into the toilet?

Do not throw foreign objects: paper towels, sanitary napkins, condoms, diapers, blades, food, hair, oils or solvents.

How to unclog the macerator pump?

Close the valves, remove the pump chamber cap and clear the obstruction. Also check the drainage pipe.

USER MANUAL Masterflush MF7100 DOMETIC

MasterFlush Operation

Freshwater Flush

Toilet system start-up

1. Turn on fresh water supply to toilet.
2. Press "Flush" switch (2) and hold for at least 10 seconds.
3. Toss several sheets of toilet paper into bowl and repeat cycle. The bowl should completely clear.

Normal flushing

ADDING WATER TO TOILET BOWL

Press "Add Water" switch (1) and hold until desired water level is achieved. (Do not press "Add Water" switch too long or overflow may occur.) More water is usually added only when flushing solids.

FLUSHING TOILET

Press "Flush" switch (2) down and hold until waste drains from toilet bowl (about 10 - 20 seconds). This switch activates a macerator pump that siphons water and waste from the bowl, macerates, and propels the effluent to the discharge line/holding tank.

To use less water for liquid-only flushes, press "Flush" switch for shorter period of time.

Sea Water Flush

Toilet system start-up

1. Open sea water inlet and toilet discharge outlet seacocks.
2. Press "Flush" switch (3) and hold for at least 10 seconds.
3. Toss several sheets of toilet paper into bowl and repeat cycle. The bowl should completely clear.

Normal flushing

Press "Flush" switch (3) down and hold until waste drains from toilet bowl (about 10 - 20 seconds). This switch activates a macerator pump that siphons water and waste from the bowl, macerates, and propels the effluent to the discharge line.

To use less water for liquid-only flushes, press "Flush" switch for shorter period of time.

If toilet bowl does not completely flush and fills up with sea water during flush, partially close inlet valve until bowl clears and completely discharges effluent. Then, with inlet and discharge valves completely open, flush toilet for a few seconds to clear toilet and discharge system.

Caution! Hazard of Flooding

If toilet is connected to ANY through-the-hull fittings, ALWAYS close sea-cocks when toilet is not in use (even if boat is unattended for a brief period). All passengers MUST be instructed on how to close valves when the toilet is not in use. Failure to do so can result in flooding which can cause loss of property and life.

DO NOT FLUSH FOREIGN OBJECTS

CAUTION! Flush only water, bodily wastes and rapid-dissolving tissue paper. Do not flush wet wipes, sanitary napkins, condoms, diapers, razor blades, paper cups, cotton swabs, food, hair or liquids such as oils or solvents. Clogging or damage to the toilet system may occur.

Note

Make sure all guests understand toilet operation before use.

Use RAPID-DISSOLVING toilet tissue - avoid clogs

To avoid potential clogging problems with some household tissues, Dometic recommends the use of quick-dissolving tissue, such as SeaLand® Rapid-dissolving 1-ply or 2-ply Toilet Tissue.

IMPORTANT! NOT EVERY MARINE-GRADE TOILET PAPER DISSOLVES RAPIDLY

To determine any tissue's ability to dissolve, immerse one square of tissue in a jar of water and shake 5-10 times. The tissue sample should break up so that it is no longer in one piece.

Troubleshooting

Problem Possible Cause Service Instruction
1. Flush function works, but water in bowl empties slowly or not at all.	a. Discharge piping is pinched or kinked.	a. Check discharge piping.
	b. Discharge piping is too high. (Remember, all upward vertical loops and should not exceed a total of 4 feet (1.2 m) in height.)	b. Reroute discharge piping.
	c. The macerator pump or discharge piping is blocked.	c. Close seacocks and clear blockage.
2. Macerator pump makes unusually loud noise or continually trips breaker.	a. Foreign material in pump chamber.	a. Close seacocks and clear foreign material.
3. Flush cycle is not activated after pushing on flush switch.	a. Holding tank is full and signal from tank has shut down electrical power to toilet.	a. Empty holding tank.
	b. Electrical power to toilet is shut off or disrupted.	b. Check wiring and circuit breakers (or fuses).
	c. Flush switch is malfunctioning.	c. Replace flush switch.
	d. Electric motor is malfunctioning.	d. Replace electric motor.
4. Insufficient or no water enters the bowl.	a. Water supply line is pinched or kinked.	a. Check water supply line.
	b. Screen in water valve is blocked.	b. Clear blockage at water valve.
	c. Intake water filters are blocked (in sea water system).	c. Clear water filters.
	d. Water valve is malfunctioning (fresh water flush toilet).	d. Replace water valve.
	e. Water impeller is malfunctioning (sea water flush toilet).	e. Replace sea water impeller.

During extended periods of non-use

The macerator toilet and sanitation hoses should be protected if toilet will not be needed for an extended period of time (more than two weeks, especially in hot weather).

1. Flush toilet and add 4 oz. (118 ml) of liquid biodegradable laundry detergent (should NOT contain bleach or environmentally harmful substances).

Note: If using sea water for flushing, shut off power to sea water pump and add fresh water directly into the bowl during the flush cycle.

1. Flush toilet at least five times.
2. Turn off water supply to toilet.
3. Flush the toilet without water very briefly to evacuate all water. (This procedure will minimize any remaining water in the macerator pump.)

Caution

During water evacuation process, do not operate sea water pump very long without water. Pump impeller may become damaged.

1. Turn off power to the toilet.
2. After extended periods of non-use, toilet and pump may dry. For easier re-start of toilet system, add one quart of water to bowl and let it stand for a few minutes before use.

Customer service

There is a strong, worldwide network to assist in servicing and maintaining your sanitation system. For the Authorized Service Center near you, please call from 8:00 a.m. to 5:00 p.m. (ET) Monday through Friday.

You may also contact or have your local dealer contact the Parts Distributor nearest you for quick response to your replacement parts needs. They carry a complete inventory for the Domatic Sanitation product line.

Telephone: [phone] U.S.A. and Canada

330-439-5550

International

Fax: [phone] U.S.A. and Canada

330-439-5567

International

Web sites: http://www.Domatic.com

http://www.DometicSanitation.com

For a complete product information, refer to the owner's manuals, or call Dometic Corp., SeaLand Product Customer Service at 1-800-321-9886.

Domatic

Registered; TM Trademark of Dometic Corporation

Dometic Corporation

600347005 08/13

DOMETIC CORPORATION

SANITATION DIVISION

13128 SR 226 | PO BOX 38

BIG PRAIRIE, OHIO 44611 USA

www.Dometic.com

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Dometic Australia Pty. Ltd.

1 John Duncan Court

Varsity Lakes QLD 4227

[phone]

[phone]

Mail: [e-mail]

AUSTRIA

Dometic Austria GmbH

The Gateway 25 Canton Road,

Tsim Sha Tsui · Kowloon

Hong Kong

[phone]

[phone]

Mail: [e-mail]

ITALY

Dometic Italy S.r.l.

Via Virgilio, 3

I-47100 Forli

[phone]

[phone]

Mail: [e-mail]

NORWAY

Dometic Norway AS

Skolmar 24

N-3232 Sandefjord

[phone]

[phone]

Mail: [e-mail]

POLAND

Dometic Poland Sp. z o.o.

Ul. Puławska 435A

02-801 Warszawa

Poland

[phone]

[phone]

Mail: [e-mail]

RUSSIA

Dometic RUS LLC

Komsomolskaya square 6-1

107140 Moscow

Russia

[phone]

[phone]

Mail: [e-mail]

SLOVAKIA

Dometic Slovakia s.r.o.

Tehelná 8

SK-98601 Fifakovo

[phone]

[phone]

Mail: [e-mail]

SPAIN

Dometic Spain S.L.

Avda. Sierra del Guadarrama, 16

E-28691 Villanueva de la Canada

Madrid

[phone]

[phone]

Mail: [e-mail]

SWEDEN

Dometic Scandinavia AB

Gustaf Melins gata 7

Dometic Switzerland AG

Riedackerstrasse 7a

CH-8153 Rümlang (Zürich)

[phone]

[phone]

Mail: [e-mail]

TAIWAN

WAECO Impex Ltd.

Taipei Office

2 FL-3 · No. 56 Tunhua South Rd, Sec 2

Taipei 106, Taiwan

[phone]

[phone]

Mail: [e-mail]

UNITED KINGDOM

Dometic UK Ltd.

Dometic House · The Brewery

Blandford St. Mary

DorsetDT119LS

[phone]

[phone]

Mail: [e-mail]

UNITED ARAB STATES

Dometic Middle East FZCO

P.O.Box 17860

S-D 6, Jebel Ali Freezone

Dubai, United Arab Emirates

[phone]

[phone]

Mail: [e-mail]

UNITED STATES OF AMERICA

Dometic Marine Division

2000 N. Andrews Ave. Extension

Pompano Beach, FL 33069 USA

[phone]

[phone]

Mail: [e-mail]