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TROUBLESHOOTING GUIDE

1. Valve does not function (no flush).

A. Control Stop or Main Valve is Closed. Open Control Stop or Main Valve.

B. Foot Pedal Assembly is worn or damaged. Install Foot Pedal Repair Kit or 

replace Foot Pedal Assembly.

C. Relief Valve is worn or damaged. Replace Inside Parts Kit.

2. Volume of water is not sufficient to siphon fixture.

A. Control Stop is not open wide enough. Adjust Control Stop for desired 

delivery of water volume.

B. Urinal Flushometer Parts inside a Closet Flushometer. Replace Inside 

Urinal Parts with proper Closet Flushometer Parts.

C. Low Consumption Flushometer installed on a higher Consumption 

fixture. Replace Inside Parts Kit with Water Saver Kit.

D. Water Saver Kit installed in old non-Water Saver bowl. Position Refill 

Head so that SIDE 1 is in the UP position (Regal Flushometers only). For 

other models, refer to Factory.

E. Water supply volume or pressure is inadequate. If no gauges are 

available to properly measure supply pressure or volume of water at 

the Flushometer, then remove the Relief Valve from the Inside Parts Kit, 

reassemble the Flushometer and completely open the Control Stop.

 

•  If the fixture siphons, more water volume is required. If a 3.5 gpf 

Inside Parts Kit is installed in the Flushometer, then first flip the 

Refill Head (under the diaphragm) to obtain a 4.5 gpf volume. If this 

volume is still inadequate, remove the Flow Ring from the Guide to 

obtain a 6.5 gpf Kit. If additional flow is required, try a Low Pressure 

Guide Kit. IMPORTANT — Laws and Regulations requiring Low 

Consumption Fixtures 

(1.6 gpf/6.0 Lpf Water Closets and 1.0 gpf/3.8 Lpf Urinals) prohibit 

the use of higher flushing volumes.

 

•  If the fixture does not siphon or if a Low Consumption fixture is 

installed, or if the above steps do not prove satisfactory, steps 

must be taken to increase the water supply pressure and/or 

volume. Contact the fixture manufacturer for minimum water supply 

requirements of the fixture.

3. Flushometer closes off immediately.

A. Ruptured or damaged Diaphragm. Replace Inside Parts Kit.

B. Enlarged By-pass orifice from corrosion or damage. Replace Inside Parts 

Kit.

4. Length of flush is too short (short flush).

A. Diaphragm Assembly and Guide Assembly are not hand-tight. Screw the 

two assemblies hand-tight.

B. Enlarged By-pass orifice from corrosion or damage. Replace Inside Parts 

Kit.

C. Urinal Flushometer Parts inside a Closet Flushometer. Replace Inside 

Urinal Parts with proper Closet Flushometer Parts.

D. Low Consumption Flushometer installed on a higher Consumption 

fixture. Replace Inside Parts Kit with Water Saver Kit.

E. Foot Pedal Assembly is damaged. Replace Foot Pedal Assembly.

5. Length of flush is too long (long flush) or continuous.

A. Relief Valve is not seating properly or By-pass orifice is clogged because 

of foreign material, or By-pass orifice is closed by an invisible gelatinous 

film from “over-treated” water. Disassemble the working parts and 

wash thoroughly. NOTE: Size of the orifice in the by-pass is of utmost 

importance for the proper metering of water into the upper chamber of 

the flushometer. Do not enlarge or damage this orifice. Replace inside 

kit if cleaning does not correct problem.

B. Supply line water pressure has dropped and is not sufficient to close the 

valve. Close Control Stop until pressure is restored.

C. Closet Flushometer Parts inside a Urinal Flushometer. Replace Inside 

Closet Parts with proper Urinal Flushometer Parts.

D. Inside Cover is damaged. Replace Inside Cover.

6. Chattering noise is heard during flush.

A. The Segment Diaphragm is installed upside-down. Replace the Segment 

Diaphragm to the proper position as instructed by markings on the 

Diaphragm.

B. Inside Cover is damaged. Replace Inside Cover.

7. Foot Pedal Leaks.

A. Foot Pedal Gasket, Seal or Assembly is damaged. Replace as required.

When assistance is required, please contact Sloan Valve Company 

Installation Engineering Department at:

1-888-SLOAN-14 (1-888-756-2614) 

OR 

1-847-233-2016

Care and Cleaning

DO NOT use abrasive or chemical cleaners (including chlorine bleach) to clean 

Flushometers as they may dull the luster and attack the chrome or special 

decorative finishes. Use ONLY soap and water, then wipe dry with clean cloth 

or towel.
While cleaning the bathroom tile, the Flushometer should be protected from 

any splattering of cleaner. Acids and cleaning fluids can discolor or remove 

chrome plating.

Summary of Contents for Royal 310

Page 1: ...code restrictions and installation practices the Crown Naval 313 INT L is for International use only Important INSTALL ALL PLUMBING IN ACCORDANCE WITH APPLICABLE CODES AND REGULATIONS WATER SUPPLY LI...

Page 2: ...tion 1 6 gpf 6 0 Lpf Model 318 Water Saver 3 5 gpf 13 2 Lpf Model 318 1 6 Low Consumption 1 6 gpf 6 0 Lpf Model 320 Water Saver 1 5 gpf 5 7 Lpf Model 320 1 0 Low Consumption 1 0 gpf 3 8 Lpf Model 323...

Page 3: ...L of Fixture Spud Cut pipe 1 32 mm shorter than this measurement Chamfer O D and I D of water supply pipe WATER SUPPLY PIPE FINISHED WALL 1 1 4 32 mm C L OF FIXTURE SPUD SWEAT SOLDER ADAPTER B Slide...

Page 4: ...LBOW OUTLET TUBE COUPLING NYLON SLIP GASKET RUBBER GASKET GASKET SAME PIPING AS ABOVE EXCEPT WITHOUT CALLOUT BRACKETS USED FOR VACUUM BREAKER FLUSH CONNECTION PROCEDURE MODEL 310 312 VACUUM BREAKER TU...

Page 5: ...own by dashed lines are not supplied by Sloan FIXTURE SIDE OF WALL 1 1 2 OR 3 4 I P S PIPE CONNECTION NOT SUPPLIED BY SLOAN S 21 GASKET F 2 A COUPLING NUT F 100 FLUSH CONNECTION SUPPLIED 3 1 4 LONG B...

Page 6: ...End to Actuator Assembly ACTUATOR SHAFT END COUPLING MOUNTING NUT WALL FIXTURE SIDE ACTUATOR ASSEMBLY 9 Adjust Control Stop and Install Stop Cap A Install Gasket between the Actuator Assembly and open...

Page 7: ...n or damage Replace Inside Parts Kit 4 Length of flush is too short short flush A Diaphragm Assembly and Guide Assembly are not hand tight Screw the two assemblies hand tight B Enlarged By pass orific...

Page 8: ...ng Assembly Model 320 4E F 2 A 3 4 19 mm Slip Joint Coupling Set of 2 Model 323 4F F 2 A 1 1 4 32 mm Slip Joint Coupling Set of 2 Model 343 5 ELL with 1 1 4 32 mm Tail Models 310 312 6 ELL with 3 4 19...

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