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Quick fixes for pressure loss, leaks, clogs, and battery issues.
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Open the formQuick answers.
The most common questions our support team answers, with the fix that works most of the time. Need the full walkthrough? Each answer links to its step-by-step guide.
Rapid pressure loss is most commonly caused by a worn or damaged pump piston seal. Other causes include a loose or cracked pump tube, a faulty pressure check valve, or a damaged tank lid gasket. The fix that resolves most cases: apply food-grade silicone grease to the pump piston O-ring. If pressure still drops, a pump repair kit is available on our store.
Read the full guideIf your sprayer won't build pressure, the pump cylinder or piston may be dry, cracked, or seized. Apply petroleum jelly to the piston seal and try pumping again. Check that the pump tube is fully seated and not cracked. If the pump still won't engage, the piston cup likely needs replacement — replacement pump repair kits are available for most FGI models.
Read the full guideA dripping wand or nozzle after releasing the trigger is typically caused by a worn shut-off valve or a degraded valve seat. Disassemble the shut-off valve and inspect the rubber valve and seat for wear or debris. Cleaning the valve seat and replacing the rubber disc usually fixes it. Replacement shut-off valve kits are available on our store.
Read the full guideRelieve tank pressure first by pressing the pressure relief valve. Remove the nozzle tip and soak it in warm soapy water for 15–30 minutes. Use a soft brush or toothpick to clear any blockage — avoid metal tools that could enlarge the orifice. If clogging recurs, check your chemical's compatibility with your sprayer and strain solutions before filling the tank.
Read the full guideAfter each use, rinse the tank thoroughly with clean water, pump it through the wand and nozzle to flush residual chemical, then release any remaining pressure before storing. For long-term storage, leave the tank empty and store in a cool, dry location away from direct sunlight. Leaving chemical residue inside will degrade seals and clog nozzles over time.
Read the full guideThe item number (also called the model number or item code) is printed on the product label, packaging, or instruction manual. It typically begins with letters followed by numbers. You'll need this number when filing a warranty claim, ordering replacement parts, or contacting our support team. If you can't locate it, call us at 1-800-311-9903.
Read the full guideBrowse all troubleshooting guides.
Full step-by-step how-to articles for every issue our support team handles, from pressure loss to battery priming.
Why your sprayer loses pressure quickly, and how to fix it
Rapid pressure loss is almost always a worn pump piston seal. Grease the piston O-ring first; if it persists, install a pump repair kit.
Read the guide TroubleshootingSprayer will not build pressure or pump at all
If the pump will not build pressure, the piston is usually dry, cracked, or seized. Lubricate and reseat it; replace the piston cup if needed.
Read the guide TroubleshootingLiquid drips from the wand when you are not spraying
A wand that drips after you release the trigger usually has a worn shut-off valve or valve seat. Clean the seat and replace the rubber disc.
Read the guide TroubleshootingHow to unclog a sprayer nozzle
Relieve pressure, remove the nozzle tip, and soak it in warm soapy water. Clear the orifice with a soft brush or toothpick, never metal.
Read the guide MaintenanceSprayer cleaning and maintenance: keep your sprayer working
Most sprayer failures come from dried chemical residue. Rinse the tank and flush clean water through the hose and nozzle after every use, then store between 40 and 104 degrees F.
Read the guide Product InfoWhere to find the item number on your product
The item number (also called model number or item code) is printed on the product label, packaging, or instruction manual. It usually starts with letters followed by numbers.
Read the guide WarrantyHow to file a warranty claim
If your sprayer is defective and within the warranty period, call or email to request an RMA. Have your proof of purchase, model number, and the chemicals used ready.
Read the guide PartsHow to identify and order replacement parts
Identify your model number first, then the exact part you need. Shop genuine parts online, or call with your model number and a photo and we will match the right part.
Read the guide PartsHow to order a replacement pump assembly or Pump Zero head
When the pump motor fails, the pump assembly may need replacing. Rule out battery, charger, and priming issues first, then call with your model number.
Read the guide Product InfoHow to find your sprayer's instruction manual
Every FGI sprayer has a digital manual. Identify your model number, then use the manual finder on our Support page or email us and we will send the matching PDF.
Read the guide TroubleshootingBattery and charger troubleshooting quick guide
Most battery issues are a depleted battery, an unpowered or out-of-range charger, or an end-of-life pack. The charger LED tells you which: solid red is charging, solid green is full, blinking red is too hot.
Read the guide TroubleshootingHow to manually prime your battery-powered sprayer pump
When a battery sprayer is new or has sat unused, trapped air can stop water flow. Prime the pump once with a garden hose and it self-primes after that.
Read the guide TroubleshootingSprayer tank is leaking: repair or replace
Leaks at fittings (hose, pump base, fill cap) can usually be fixed with parts. A crack in the tank wall itself cannot be patched safely and means the tank must be replaced.
Read the guide PartsHow to replace a damaged hose, wand, or backpack harness
Hoses, wands, and harness straps are user-replaceable. Match the part to your model number, then swap it out and test with plain water before using chemicals.
Read the guide Product InfoULV17 fogger: what chemicals can and cannot be used
The ULV17 cold fogger is for water-based and water-soluble products only. Never use oil-based chemicals, flammable solvents, or aerosol propellants; they damage the unit and void the warranty.
Read the guide MaintenanceHow to maintain your Wildfire or SmokeChaser firefighting backpack pump
Flush with clean water after every use, oil the pump shaft gland nut, check the hose and nozzle, and winterize with automotive anti-freeze so the pump is ready in an emergency.
Read the guide Product InfoWildfire and SmokeChaser product information
The Wildfire OT4-N is a 5.5-gallon poly-tank hand-pump fire backpack; the SmokeChaser Chief (190790) uses the FEDCO FPG100 pump. Both are for water and water/foam retardants only.
Read the guide TroubleshootingBattery sprayer will not turn on even with a full charge
A full battery but no pump usually means an overheated protection circuit, chemical residue locking the pump, or a failed pump head. Cool it down, reseat the battery, flush the pump, then replace if needed.
Read the guide TroubleshootingSprayer turns on but will not spray
If the pump runs but no liquid sprays, the tank may be empty, the shut-off or nozzle is clogged, or the pump has not primed. Check the level, clean the shut-off and nozzle, and give it 30 seconds to prime.
Read the guide TroubleshootingSprayer only sprays at low pressure
Weak spray is usually a partially clogged shut-off or nozzle, or a pump that has not fully primed. Depressurize, clean the shut-off and nozzle, and let it prime.
Read the guide TroubleshootingSprayer sprays on its own or will not stop spraying
A sprayer that will not stop usually has the shut-off lock engaged. Squeeze the handle fully, disengage the lock, and release. If it still will not seal, the shut-off needs cleaning or replacement.
Read the guide TroubleshootingMaterial overflows through the pump barrel or the handle rises
This is a check-valve problem: debris under the valve, or a chipped, torn, or swollen valve. Clean the check valve and its sealing surface, and replace the valve if damaged.
Read the guide TroubleshootingBad spray pattern or low spray volume
A distorted pattern or low volume is almost always a clogged nozzle or dip-tube filter. Clean both, re-pressurize, and test.
Read the guideFind your manual.
Enter your item number, or pick your brand to browse. Item numbers are on the product label and packaging.
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