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Tech Support Common Scenarios                       


Safety Warning (Read Before)

  1.  The pump will not turn on unless it is supplied with min 40 PSI of water. 
  2. The built-in pressure switch will shut off the pump if inlet pressure drops below 40 PSI. 
  3.  DO NOT RUN THIS PUMP DRY if the pressure safety switch is removed or bypassed. The warranty does not cover damage to the pump if it is run without water. 
  4. Do not add secondary controllers, fittings, expansions to systems without consulting a mistcooling tech first. Doing this without consulting a tech will void warranty. 
  5. Install in the location where noise from the pump is not a concern. High-performance oil-less pumps do make noise. However, the Pump can be placed up to 200Ft. Away from 1 st mist nozzle. The noise level of the misting pump is not considered a defect.
  6.  Recommended continuous run time is 12-15 hours. Please contact our technicians if the application needs longer operating hours than recommended.
  7.  Misting Pumps build heat and pressure during operation; allow pumps to cool before handling or repairing the pump.
  8.  Oil-less pumps have a built-in thermal safety switch and may cycle off to cool-off. 
  9. To reduce the risk of electric shock, always disconnect the pump from the power source before handling or servicing. 
  10.  A qualified electrician should perform any electrical wiring of the pump. 
  11. These pumps are not intended to be submerged. 
  12. For pumping liquids other than water, please only pump water based and water soluble liquids only. o Do not pump hazardous materials (flammable, acidic, etc.) unless the pump is specifically designed to handle them.
  13.  May cause water leaks. Install in a dry, flat, ventilated area with easy maintenance access. 
  14. Mistcooling, Inc. is not responsible for losses, injury, or death resulting from failure to observe these safety precautions, improper installation,

Noise Level Issue 

Misting Pumps Create Some Level of Noise During Operation, But There Are Several Ways to Minimize the Impact:

  • Placement: Pumps Can Be Installed Up To 200 Feet Away from The Misting Line Start Point, Reducing Noise Near the Seating or Activity Area. Please Purchase Extra Nylon Tubing From Our Website to Store Pump in Desired Area. 
  • Speed Control: Using A Speed Controller Lowers Pump RPM, Which Directly Reduces Noise Output.
  • Positioning: Place The Pump in A Well-Ventilated Area That Is Not in Direct Line of Sight to Guests (Avoid Direct Sunlight to Prevent Overheating).

Noise Level Comparisons: To Help Put Things in Perspective, Here’s How Our Pumps Compare to Common Household Sounds:

Push Lock Fittings

   

  • Cut The Tube Straight, Ensure That the Cut Has Not Made the Tube Out of Shape.
  • Also, Ensure That the Tube Has a Smooth Outside Diameter Without Any Burrs or Score Marks Before Inserting It into The Fitting.
  • Push The Tubing Through the Collet And O-Ring(S) Until It Bottoms Out Against the Tube Stop.
  • The Collet Holds the Tube in Place, And The O-Ring(S) Provide A Leak Resistant Seal. Push And Pull the Tubing Toward and Away from The Fitting to Ensure That It Has Been Installed Properly. 

TUBE REMOVAL

  • Relieve Pressure from The Tubing and Fitting. Push Uniformly Around the Collet Flange Against the Fitting Body While Pulling the Tubing Away from The Fitting to Release It.

IMPORTANT

  •  Make Sure There Is No Pressure in The Line While Installing or Removing Push-Lock Fittings. Turn Off   the Pump and Remove the Nozzle from The Line to Relieve the Pressure.
  • To Effectively Release the Tubing from The Fitting Tubing, Push-Lock Release Tool Also Can Be Used.
  • Tubes Are Pushed Approximately 1/2 Inch into Fitting. Fittings Add Ups Around 1/4 Inch in the Tube Runs. Please Consider This While Designing Tube Runs.

PREVENTING LEAKS

  • Ensure The Tube Is Cut Straight and Firmly Pushed All the Way into The Fitting.
  • Prevent Any Immediate Bends Near Fittings; Clamps Should Be Placed 2 Inch from Fitting Joints.
  • If Leaks Persist, Remove the Tube from The Fitting and Cut It Straight Another 1/2 Inch and Firmly Reinsert It into The Fitting.

Nozzles Clogging/Leaking

Nozzles Clogging:

  • If Your Misting Nozzles Begin Clogging Abnormally Fast, The Most Common Cause Is a Dirty or Insufficient Filter—Even If the Filter Was Installed Recently. Nozzles Have Extremely Small Openings, So Any Debris or Mineral Buildup In The Water Supply Can Block Them.
  • Clogging Is Almost Always a Sign That Your Filter Needs to Be Cleaned or Replaced. Running The System Without Timely Filter Maintenance, Without Any Filter at All, Or with Poor Water Quality Will Quickly Lead to Clogged Nozzles
  • Even With Proper Filtration, Some Clogging Is Normal Due to The Very Small Nozzle Openings. Nozzles Are Wear Items and Require Occasional Cleaning and Replacement.

Recommendations:

Nozzles Leaking:

  • A Nozzle That Leaks After The System Is Turned Off Is Easily Fixable By Installing A Drain Valve. Simply Install This Drain Valve at The Beginning of Your Misting Line to Help Alleviate Any Excess Leaking on Your Misting Line. 

 

Why Is My Pump Shutting Off?

If The Pump Is Hot from Operating, The Internal Thermal Safety Switch Prevents It from Turning on Until It Cools. Make Sure the Pump Has Had Time to Cool Off and Recheck the Operation.

This Feature Is Built into All Oil-Less Pumps by The Manufacturer to Protect the Motor and Extend Its Life. It Is Not a Defect—Once the Pump Temperature Drops Below the Safety Limit (Around 145°F), It Will Automatically Restart.

 How to Reduce Overheating

  • Cool The Pump While Running: Aim 1–2 Misting Nozzles Directly at The Pump.
  • Add A Heat-Sink: Attachable Heat-Sinks Help Dissipate Heat More Effectively.
  • Control Pump Speed: A Pump Speed Controller Lowers Rpms, Reducing Heat Buildup.
  • Choose The Right Location: Keep the Pump in A Shaded, Well-Ventilated Area, Away from Direct Sunlight.

By Following These Steps, You Can Keep Your Pump Cooler, Reduce Shut-Offs, And Ensure Longer Service Life

My tubing has a blowout

If You Notice Small Puncture Holes in The Line, It May Be Caused by Excess Pressure. Each Pump Is Rated for A Specific Number of Nozzles. To Prevent Pressure Buildup, We Recommend Running At Least Half of The Rated Nozzle Count.

For Example, A .30 GPM 1500 PSI Pump Is Rated For 40 Nozzles—You Should Run At Least 20 Nozzles with This Pump.

If Needed, You Can Fine-Tune the Pressure Using the Adjustment Valve Inside the Pump Panel.

[Pressure Adjustment Video (0.15 & 0.30 GPM)]

[Pressure Adjustment Video (0.5, 1 & 2 GPM)]

 

How Many Pool Cooler Does My Pool Require?

Depending On the Number of Pool Returns Your Pool Has. We Recommend the Following

Purchase Pool Cooler Here

Number of Return Jets

Number of Pool Coolers

2

 1 to 2

3

 1 to 2

4

 2 to 3

5

 3 to 4

6

 3 to 5

7

 4 to 6

Why does my pool cooler not fit my pool?

We Have Developed a Pool Cooler Accessory Kit for Any Pool Returns That May Not Work with Our Standard Pool Cooler. Purchase Our Pool Cooler Accessory Kit Here

I have water, My unit is on, why is my unit not misting?

If Your Unit Is On/Has Power, And Your Water Source Is Producing Water, But You Are Still Not Getting Anything Out of Your Nozzles. Its More Than Likely Your Units Solenoid Has Failed, This Is What Allows the Water to Pass Through the Unit to Make It Through the Nozzle. Replacing Your Solenoid Should Do the Trick. Please Take a Look at Our Units

(THIS ONLY APPLIES TO HIGH PRESSURE UNITS 1500 PSI, AND 250 PSI ONLY)

Solenoid For 250 Pump

Solenoid For 1500 PSI  Standard 0.15, 0.PSI

Solenoid For 1500 Psi Premium 0.5,1,2 Gpm

Why wont my pump turn on (High Pressure 1500 PSI)?


First Make Sure the Outlet You Are Using Is Rated For 110v And Is Functioning. If So, Please Make Sure Water Is Also Being Ran to The Unit. 

After These Operations, If You Are Still Not Getting Power to Your Unit. Its More Than Likely Your Pressure Switch Has Failed. This Is What Helps Power the Unit. 

To Make Check If the Pressure Switch Has Failed, Try Bypassing It. Below Are Some Video Tutorials on How to Complete This 

1500 PSI Standard 0.15, 0.30

1500 Premium 0.5 ,1 ,2 GPM


If You Successfully Bypassed the Pressure Switch and Pump Is Operating. Please Purchase Replacement Pressure Switch for Your Unit Below. 

Pressure Switch For 1500 Psi Standard 0.15, 0.30


 Pressure Switch For 1500 Psi Premium 0.5 gpm, 1 gpm. 2 gpm

If This Does Not Solve Your Issue, Please Make Sure Your Carbon Brushes Have Been Properly Maintenance. This Can Cause the Pump to Fail and Not Power On, Please Replace Your Carbon Brushes Below.

(This only applies for 1000,1500 0.15,0.30 PSI) 

https://www.mistcooling.com/shop/carbon-brushes-0-15-gpm-1920#attribute_values=982

What nozzles do I need for my misting system?

CLICK HERE TO USE OUR NOZZLE SELECTOR T​O​OL

To Determine the Appropriate Orifice Size, Consider the Following Recommendations:

  • For Low Pressure, It Is Advisable To Use A 0.020" Or 0.015" Orifice.
  • For Medium Pressure, A 0.012" Orifice Is Recommended.
  • For High Pressure, It Is Suggested To Use A 0.008" Or 0.006" Orifice.

Why is my pump not producing enough pressure?

Your pump could be losing pressure due to a number of reasons

  1. Don't install more nozzles than what your pump can support. Each pump is rated for a certain amount of nozzles. 

For Example, A .30 GPM 1500 PSI Pump Is Rated For 40 NozzlesYou Should NOT Run more than 40 nozzles with this Pump.

    Misting Pump

    200 PSI 

    250 PSI 

    1000 PSI 0.15 GPM

    1000 PSI 0.3 GPM

    1500 PSI 0.15 GPM

    1500 PSI 0.3 GPM

    1500 PSI 0.5 GPM

    1500 PSI 1 GPM

    1500 PSI 2 GPM

    Max Number Of Nozzles

    20 

    40 

    20 

    40

    20

    40

    45

    80

    160

 

2. Check Filter. A clogged filter could be the reason why are not getting enough pressure out of your system. Make sure to keep up regular maintenance of filter by cleaning inside cartridge. We recommend you change your filter frequently depending on your water quality in your area. 

3. Make sure there is no leaks in your misting line, address any leaks in your system by addressing the misting tee and the tubing in your system. Please refer to the tubing blowout section above to make sure this is not a blowout caused by too much pressure build up in the line. A good way to make sure that there is no leaks in your misting line, is to remove the end plug at the end of your line and observe the water flow. If no water comes out, there may be a leak preventing it somewhere in the line that must be addressed. 

4. Observe your pump. If there is water leaking from bottom of enclosure, this could mean the seals need to be replaced. This is probably a reason why you are not getting any pressure from your pump. Please refer to our seal kit change video below and purchase our seal kit replacement from our website. (This only applied for 1000-1500 Psi Standard units)



What kind of regular maintenance should i do to my misting system?


200 PSI Pump (Mid Pressure)

Maintenance

  • ✔ Clean nozzles when spray looks uneven.
  • ✔ Use nozzle cleaner or compressed air.
  • ✔ Check tubing & fittings for leaks.
  • ✔ Replace filter if clogged.

Winterization

  1. Turn OFF pump & water supply.
  2. Disconnect water line from pump inlet.
  3. Run pump for 10–15 seconds to clear water.
  4. Remove nozzles & blow air through mist lines.
  5. Store indoors, away from freezing temps.

250 PSI Pump (Mid Pressure)

Maintenance

  • ✔ Change filter every 3–6 months (more often if water is hard).
  • ✔ Add a scale-free filter if you have hard water.
  • ✔ Clean/replace nozzles as needed.

Winterization

  1. Unplug pump & turn OFF water.
  2. Disconnect water line from pump.
  3. Run pump 10–15 seconds to purge water.
  4. Remove nozzles & blow out lines.
  5. Store indoors, dry and frost-free.

1000 PSI Pump (High Pressure – Oil-Less)

Maintenance

  • ✔ Replace filter every 3–6 months.
  • ✔ Clean/replace nozzles regularly.
  • ✔ Check seals & carbon brushes for wear.

Winterization

  1. Turn OFF pump & water.
  2. Run pump briefly to push out water.
  3. Remove nozzles & blow air through lines.
  4. Store in a warm, dry place.

1500 PSI Pump – Oil-Less (0.15 & 0.30 GPM)

Maintenance

  • ✔ Change filters every 3–6 months.
  • ✔ Clean nozzles often.
  • ✔ Inspect seals & brushes.
  • ✔ Max run time: 12–15 hours per day.

Winterization

  1. Shut OFF pump & water supply.
  2. Disconnect tubing & run pump briefly.
  3. Remove nozzles & clear lines with air.
  4. Store indoors, frost-free.

1500 PSI Pump – Oil-Based (0.5, 1, 2 GPM)

Maintenance

  • ✔ Check & change oil with ISO 68 MistCooling oil.
  • ✔ Replace filter every 3–6 months.
  • ✔ Clean or replace nozzles.
  • ✔ Keep pump level to prevent oil leaks.

Winterization

  1. Turn OFF water & power.
  2. Run pump for 10–15 seconds to purge.
  3. Remove nozzles & blow air through lines.
  4. Replace RED oil cap with BLACK shipping cap.
  5. Store indoors, dry & frost-free.

Quick Tips for All Pumps

  • Always disconnect power & water before winter storage.
  • Only run pump dry for a few seconds to clear water.
  • Clean nozzles = better mist & longer life.
  • Store indoors to prevent freezing damage