MyTana M20T Electric Jetter User Guide

MyTana M20T Electric Jetter

The M20T, M20, and M30 Jetters are high-pressure water jetting units used to clean debris out of drain and/or sewer lines. These units use a combination of water pressure and water flow through a hose and nozzle to wash out clogs, potential blockages or to clean the walls of drains and sewer lines to prevent future blockages.

The Jetting Process

Water Jetting, also known as sewer jetting or hydro-jetting, is most effectively done from the LOW end of a clogged drain or sewer, but is also effective from the high-side. Larger jetters use a water storage tank for additional water supply.

Components of Water Jet Machines

• Water pump
• Hose reel
• Various sub-components that protect the pump and the operator
• Various nozzles for various cleaning applications and
  situations

Safety First!

Instructions and Precautions

• Remove shipping plug on top side of pumps and replace with vented plug.
• Do not store or run the pumps on its side or at a sharp angle since oil can run out of the vent plug.
• Keep bystanders or unauthorized persons away Insist they keep a safe distance before operating high-pressure equipment!
• Always insert hose and nozzle into pipe opening and hold onto hose before turning the machine on.
• ALWAYS turn machine off when changing nozzles, hoses, or reels.
• Never hold onto nozzle or point it at anyone with machine turned on. High-pressure water streams can cause serious bodily harm.
• Always turn machine off before disconnecting water supply. Running a water pump dry will seriously damage the water pump.
• Don’t operate equipment under the influence of drugs, alcohol, or if taking medication that alters alertness.
• Gas jetters that are ordered with an electric starter package will have a battery attached. Batteries contain sulfuric acid. Avoid direct skin contact. Wear protective gloves, clothing, and eyewear when handling your battery!

Model Details

Hose (see chart below) not incl. with base-only machine
purchase| 1/8 x 50′ (Trap Hose)| 1/8 x 50′ 1/4 x 115′| 1/8 x 75′ 3/8 x 200′
Pipe Dia. Used for Cleaning| 1 1/2 to 2 inches| 1 1/2 to 4 inches| Floor Drains Sink lines

Product Usage

1. Before using the high-pressure water jetting unit, read the instruction manual entirely and understand it.
2. Ensure that the shipping plug on top of the pump is removed and replaced with a vented plug.
3. Do not store or run the pumps on their side or at a sharp angle.
4. Keep bystanders or unauthorized persons away from the work area before operating high-pressure equipment.
5. Always insert the hose and nozzle into the pipe opening and hold onto the hose before turning the machine on.
6. ALWAYS turn off the machine before changing nozzles, hoses, or reels.
7. Never hold onto the nozzle or point it at anyone with the machine turned on as high-pressure water streams can cause serious bodily harm.
8. Always turn off the machine before disconnecting the water supply to prevent damage to the water pump.
9. Do not operate the equipment under the influence of drugs, alcohol, or if taking medication that alters alertness.
10. If handling a battery, avoid direct skin contact and wear protective gloves, clothing, and eyewear.
11. Select the appropriate hose based on the chart provided in the model details section of the manual.
12. Use the appropriate nozzle for various cleaning applications and situations.
13. Position the unit at the LOW end of a clogged drain or sewer or high-side for effective cleaning.
14. For larger jetters, use a water storage tank for additional water supply.

IMPORTANT NOTICE
FOR YOUR SAFETY, AND TO ENABLE MAXIMUM USE AND EFFECTIVENESS OF YOUR EQUIPMENT, READ (AND UNDERSTAND) THIS INSTRUCTION MANUAL ENTIRELY BEFORE USING YOUR HIGH-PRESSURE WATER JETTING UNIT! FAILURE TO FOLLOW INSTRUCTIONS AND REGULATIONS CONTAINED IN THIS MANUAL CAN RESULT IN SERIOUS INJURY TO THE OPERATOR AND/OR TO ANYONE IN CLOSE PROXIMITY TO THE WORK AREA.

The Jetting Process
Water Jetting—also know as sewer jetting or hydro-jetting—uses a combination of water pressure and water flow through a hose and nozzle to clean debris out of drain and/or sewer lines. Water jetting is used to wash out clogs, potential blockages or to simply clean the walls of drains and sewer lines to prevent future blockages.

• Sewer jetting differs from normal pressure washing in two ways:
• Sewer jet nozzles direct the flow of water back toward the operator at a 20 to 45 degree angle. This backward stream propels the sewer nozzle and accompanying hose forward into the sewer line and also cleans the walls of the pipe.
• Water pumps on sewer jetting equipment are modified to allow pulsation of water through the hose to the nozzle. This pulsation creates a vibration or “wiggle” in the jetting hose that allows the hose to move through a drain or sewer line with little resistance. Pulsating also reduces pressure and/or flow of the water, so most pumps are equipped to turn pulsation on and off at will.
• Sewer jetting differs from traditional “snaking” in that jetting is most effectively done from LOW end of a clogged drain or sewer, but is also effective from the high-side.
• Traditionally, clogged pipes were opened from the high side using the aid of gravity and the downward flow of water to clean. In the water jetting process, cleaning from the low side allows the operator to both see debris coming down and to take advantage of the water pressure and flow that is pointing toward the low end if cleaning from the low side.
• NOTE that it is usually not practical or even possible to clean from the low side of a drain or sewer line. Jetting is still effective from the high side.
• Components of water jet machines: Water pump; hose reel; various sub-components that protect the pump and the operator; various nozzles for various cleaning applications and situations. Larger jetters use a water storage tank for additional water supply.

Safety First Instructions and Precautions

• Pumps Remove the “shipping” plug on the top side of the pumps and replace it with a vented plug. This is very important for the proper operation of the pumps. Do not store or run the pumps on its side or at a sharp angle, since oil can run out of the vent plug.
• Keep bystanders or unauthorized persons away Insist they keep a safe distance before operating high-pressure equipment!

Environment

• Use caution in confined or wet areas. Since you will often be working directly through clean-outs or openings into sewers (non-trapped openings) make sure that there is adequate ventilation in the work area.
• Do not operate the machine in areas where flammable gases or liquids are present.
• Always insert hose and nozzle into pipe opening and hold onto hose before turning the machine on.
• Changing hose and/or nozzle ALWAYS turn machine off when changing nozzles, hoses or reels.
• Never hold onto nozzle or point it at anyone with machine turned on. High pressure water streams can cause serious bodily harm.
• Job Completion Always turn machine off before disconnecting water supply. Running a water pump “dry” will seriously damage the water pump.

Maintenance

• Keep machine clean and dry to maximize performance and longevity.
• Follow maintenance schedules such as changing oil, check for weak spots, slices or cuts in hose, keep inlet screen clean, replace nozzles when worn.
• Keep antifreeze in hose and pump in freezing temperatures.
• Additional maintenance details follow in this manual.
• Common Sense Don’t operate equipment under the influence of drugs, alcohol or if taking medication that alters alertness.

Electric machines

• Avoid electric shock! Before using your electric machine, make sure that a properly grounded outlet (three hole) is available. If one is not available, use a three prong adapter making sure to connect the green pigtail from the adapter to a sure ground, such as a steel water pipe.
• Never run your jetting machine without a properly grounded electrical supply and hookup! This is electric equipment in a wet environment. Every precaution should be taken when water and electricity are in close proximity.
• Use 12 gauge or heavier extension cords to power the machine.
• Never spray motor or electrical connections directly with a water stream.
• Avoid getting the electrical connections and components wet.

Gas Jetters

• Always operate machine in well ventilated environ- ment. Exhaust fumes can be potentially lethal to the operator.
• Do not allow flame or sparks in the area of operation.
• Do not refuel engine when it is hot. Spilled gasoline or gas vapor can ignite if it comes in contact with hot engine.
• Be careful not to touch engine block or the manifold/muffler during operation. These areas will become very hot during normal operation.
• Do not lay machine on its side or tilt it backwards (other than wheeling it from place to place). This can cause gas to leak out the cap vent.
• Because the gas jetter is tilted back about 30°for transport, do not fill the gas tank all the way. Leave several inches of space between the gas and the top of the tank to prevent gas from leaking out.
• Gas jetters that are ordered with an electric starter package will have a battery attached. Batteries contain sulfuric acid. Avoid direct skin contact. Wear protec- tive gloves, clothing and eyewear when handling your battery!

Model Details

Comparisons and applications

HOSE

(see chart below) not incl. with base only

machine purchase

|

1/8″ x 50′

(Trap Hose)

|

1/8″ x 50′

1/4″ x 115′

|

1/8″ x 75′

3/8″ x 200′

PIPE DIA.| 11/2″ to 2″| 11/2″ to 4″| 11/2″ to 6″
USED FOR CLEANING| Floor Drains Sink lines

Tubs and Showers

| Floor Drains Sewer Lines Small mains

Hoses and Nozzles

• Your jetter works via the proper blend of water pressure and water volume: the more water that has to pass through the restriction of a hose, the less pressure you will have at the nozzle end. To optimize cleaning power, use the shortest hose with the largest inside diameter that you can.
• The orifices (holes) in the nozzle affect pressure. Over time, water pressure will wear the orifices in your nozzle resulting in pressure drop and reduced cleaning effectiveness. Nozzles need to be replaced as normal wear occurs.
• This chart is to provide a general guideline. Each job is different and will be best served by your experience

HOSE TYPE| Trap Hose| Small Jetter Hose| Medium Jetter Hose
---|---|---|---
Hose I.D.| 1/8”| 1/4”| 3/8″
Hose O.D.| 5/16″| 1/2″| 5/8″
Nozzle Type| NOZZLE PART #
Blind Thrust: 4 rear jets| TN1-B| MN1-B| LN1-B
Cornering:

3 rear, 1 side jet

| TN2| MN2| LN2
Penetrating:

1 forward, 3 rear jets

| TN3| MN3| LN3
MyTana carries many more nozzles for different applications.

See our catalog or MyTana.com for details!

Used for Pipe Size| 1 1/2″ – 3″| 11/2”-4″| 4”-6”
General Applications| •        General maintenance • Sharp turns, traps

•        Ice, thick grease and/or sludge • Thorough cleaning of surface

Pumps

Periodically change oil in pumps.

• Change oil after first 30 hours of use for “break-in”
• After that, change every six months or at approximately 250 hours of use
• Recommended oil: General Pump (GP) Brand SAE 30W Non-detergent
• Do NOT run pump without water in it. This can damage the cylinder walls, warp or crack the pump casing.
• Do not use water more than 145°. This will damage seals.
• Your pump is equipped with a thermal relief valve. However, to optimize pump protection you should still avoid water (or any pumped fluid) that is too hot on the inlet side.
• NEVER run pump if there is ice in pump or outlet hose. To avoid freezing in the pump, run antifreeze through pump and hose(s) if stored overnight in freezing temperature. (The same bottle of antifreeze can be recycled numerous times. If it becomes discolored or diluted, replace with new.)
• Best Care: If the jetting unit will be unused for a period of time (more than several days), even in warm temperatures,  we recommend running antifreeze throughpump and hose before storage. Antifreeze greatly reduces the chance of rust, mineral deposits and other contaminants damaging the pump during storage

Additional Components

Thermal Relief Valve

• As stated earlier, water temperatures in excess of 145° can damage the pump seals. The thermal relief valve provides protection when the pump goes into “bypass” meaning the pump is running but no water is being pushed through the hose.

Pulse-abler

• The stem and handle extending from one cylinder of each water pump enables pulsation of the water stream through the hose and nozzle. By turning the pulse-abler handle clockwise (or right), you temporarily disable one valve of the pump. This creates pulsation or vibration in the hose, allowing the hose to “wiggle” through tight bends quickly and easily. Turn the pulseabler handle left again to “enable” the pump again.
• Disabling a valve also reduces cleaning power, so use the pulsation only as needed to arrive at an obstruction or to retrieve a stuck hose.

Pressure Regulator/Unloader

• The regulator/unloader both regulates the pressure and relieves pressure on the pump while in bypass. The regulator knob is located at the pump. It allows you to adjust pressure during operation.
• Regulation is needed because greater pressure requires more power (meaning amperage in electric models) from the power source. Therefore you should start the electric units with as little pressure as possible (on 15Amp circuits, back off to 1K – 1.2K PSI). This reduces the load on the motors at start up and avoids tripping circuit breakers.
• After startup, gradually increase pressure to the levels below.
• On GAS-powered units, the speed of the motor directly affects the amount of pressure. Adjust to a constant motor speed before adjusting pressure regulator.

Recommended Pressure Settings:

Gasoline

| 3000 PSI (3000

max psi)

Water Inlet and Filter

• The water inlet has a filter to prevent debris from running through your pump.
• Run water through the source hose into an open drain or bucket to flush debris out of faucet and hose — make sure the water is running clean and clear BEFORE attaching source hose to the pump
• Recheck the inlet filter before each use to make sure there is no obstruction.

Components Diagram Electric models

Pre Operation Checklist

• Check for adequate water supply. Use no smaller than 5/8” garden hose for supply to pump
• Make sure water inlet filter is clean.
• Check ground fault interrupter on electric models. Test and reset.
• Check fluid levels: Oil in pumps, oil & gas in gas powered unit.
• Select nozzle and make sure orifices are not blocked or worn to excess
• Check hose for wear or kinks
• Check hose reel and all connections

Operation Instructions

1. Attach garden hose (minimum of 5/8” diameter) to water faucet. Run water through the hose into an open drain or bucket to flush debris out of faucet & hose before connecting to pump. Shut water off again when water runs clear.
2. Attach other end (male end) of garden hose to water inlet valve at pump.
3. Connect jetter hose to reel
4. Attach nozzle to end of hose. Finger tighten, do not over tighten.
5. Mark the hose approximately 10 feet back from nozzle with electrical tape. Use this tape as a marker to shut off machine before retrieving all the line out of the drain pipe.
6. Open water intake.
7. Open water faucet again to prime pump. An equal amount of water should pass through the orifices of the nozzle.
8. Push jetter hose into drain up to the marker when possible (minimally several feet).
9. Make sure your extension cord is plugged into a properly grounded 110 volt receptacle.
10. Start Motor/Engine
    • Electric Jetters
    • Make sure motor is plugged into a properly grounded outlet
    • Start jetter motor by flipping switch into the “on” position.
    • Gasoline Engine w/ Automatic Choke
    • Turn the fuel valve to the “on” position (by moving lever to the right)
    • Turn key to “start” and start engine
    • Move throttle to desired speed Since your gas engine speed is variable, be aware that low rpm equals low pressure at the pump. Conversely, high rpm equals high pressure.
    • For normal operation, do not exceed the recommended 3000 psi (with the larger 3/8” hose).
    • When running smaller trap (1/8”) hose, manually adjust pressure setting lower to maximum of 1500 PSI.
11. Adjust pressure with pressure regulator knob, turning right to increase pressure, left to decrease. Note: See recommended max. pressure settings listed on page 5.
12. Start jetting, using pulsation only if needed to promote forward motion of nozzle and hose.

Helpful Operating Hints

• Tight bends and certain blockages are often more easily negotiated by rotating or twisting jetter hose at drain opening. Once you are through that area, pull back and pass through several times to ensure cleaning. Once you have opened the blockage(s), pull hose back very slowly to provide maximum cleaning to wall of pipe.
• When operating from the high end to low end (most common) shut off the water flow ball valve on the reel occasionally. This will allow debris to get ahead of the nozzle and flush it down the pipe.
• Grease and Ice Blockages Warm water is effective in cleaning grease and ice blockages. A cold-hot mix from the tap is adequate. However, do not exceed 145 degrees Fahrenheit. Hotter water can damage seals in your pump.

Shutting Down

1. When completing pass through drain, watch for tape marker on hose as you pull the hose out.
2. Reduce pressure gradually with pressure regulator knob until pressure gauge is at zero.
3. Stop the jetter motor/engine
   • Electric Models
   • Move switch to “off” position
   • Unplug extension cord from receptacle
   • Gasoline Models
   • Move throttle lever all the way to the right (slowest setting)
   • Turn the key to the “off” position
   • Turn the fuel valve to the “off” position
4. Continue to run water through pump and hose for 30 to 60 seconds.
5. Close water faucet and disconnect garden hose from spigot.
6. Close water inlet valve. Disconnect garden hose from jetter.
7. Pull remaining jetter hose from drain line.
8. Remove nozzle if you chose.
9. Store jetter hose properly on reel or in a coil to avoid damage to hose.

Care Tips

• Never let pump run dry!! Pump cavitation can occur in only a few seconds of running dry.
• Avoid running anything abrasive through pump
• Abrasive materials will damage pump components, resulting in total malfunction or, minimally, loss of pressure capability.
• Anti Freeze Procedure If you know there will be a period of several days when the jetter will be idle OR if the jetter is stored in potentially freezing weather, make sure to run antifreeze into pump and hose as part of your shut down procedure. Simply insert a short length of garden hose into a gallon of antifreeze, turn on pump an run until you see antifreeze coming out of the nozzle end of the hose. At next use of jetter, you can recover most of that antifreeze when you hook up to your water source. Antifreeze can be used multiple times. However if it gets to diluted (more than 50% water) or if there is any discoloration, discard that antifreeze and replace with new.
• Be careful with jetter hose against sharp edges Sharp edges can scrap, slice and generally damage hose quickly. While hose is easily replaced, it pays to take care by buffering sharp edges with tape, cardboard, etc., to maximize its useful life. MyTana has a TigerTail that helps protect your hose. See MyTana.com for details.
• Do not use Pulse-Abler more than necessary This device is what enables high-pressure cleaning through multiple turns in sink and sewer lines. However, the Pulse-Abler also creates extreme vibration and faster wear on the pump. So, use as needed, but do not use if a blockage or sewer line configuration does not require it.

Troubleshooting

pressure

No Water flow

| Kinked or collapsed garden hose| Remove kink or replace worn hose
Water supply not turned on| Turn water supply on
Clogged nozzle| Remove nozzle & clean orifices
Intake or reel valve primed| Make sure valves are open

Inconsistent and/or erratic pressure

| Sucking air on inlet side of pump| Make sure connections are tight
Partial blockage in inlet hose or filter| Remove blockage
Pump not properly primed| Disconnect hose at outlet & run until pump is properly primed

Electric motor trips circuit breaker OR electric motor overheats

| Extension cord is too small| Replace with heavy duty extension cord
Pressure regulator at full pressure| Reduce pressure with pressure regulator
Other electrical devices already drawing current on circuit| Either temporarily disconnect other electric devices or find new circuit
Inadequate electric fuse or breaker| Recommended 20 amp breaker/fuse
Exceeding maximum recommended pressure| Reduce pressure at regulator
Clogged nozzle| Clean or replace nozzle

Electric motor won’t start

| No power at outlet| Tripped circuit breaker. Reset breaker
GFI on power cord is tripped| Reset GFI
Motor overload button is tripped| Reset overload button
Water leaking from under pump manifold| ****

Worn packing (seals)

| ****

Install new packing (seals)

Oil leaking from underside of crankcase| ****

Worn piston rod seals

| ****

Replace seals

Water in crankcase

| Humid air condensing into water in crankcase| Change oil. Use only high grade automotive 30 weight non detergent oil
Worn packing and/or piston rod sleeve. O-ring on plunger retainer worn| replace packing. Replace O-rings
Oil leaking at rear portion of the crankcase| Damaged crankcase; rear cover O-ring’ drain- plug or sight glass O-ring| Replace cover O-ring, drain plug O-ring or sight glass O-ring

Frequent or premature failure of the packing (seals)

| Scored, damaged or worn plunger| Replace plungers
Excessive pressure to inlet manifold| Reduce inlet pressure
Abrasive material in fluid passing through pump| Properly filter fluid being pumped. Use clean hoses & fittings
Excessive temperature of fluid being pumped| Do not exceed 140 degrees
Running pump dry| NEVER run pump dry!

• Manufacturers of Quality
• Sewer & Drain Cleaning
• Equipment since 1957
• 800-328-8170
• Factory Direct Customer Service
• M –F 7am – 5pm CST
• Competent
• Polite
• Clear
• www.MyTana.com
• 746 Selby Ave
• St. Paul, MN 55104
• fax: 651-222-1739

References

• Sewer and drain cleaning equipment, parts and tools - MyTana LLC

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