Troubleshooting & Service Videos

Inconsistent Spray Distribution

Spray nozzle is clogged
  • Remove the nozzle
  • Clean it with warm soapy water (releases any particles that might be stuck)
Stain is too thick: deck sprayers spraying a stream instead of a fan
  • Check stain application instructions (sometimes the only way to apply is with a brush)
  • Contact the stain manufacturer to determine if there is a way to thin the stain
  • If not, either return sprayer to the store for a refund or look into renting a power sprayer


Sprayer Won't Spray

Sprayer is holding pressure but not spraying

Troubleshoot the shut-off handle after releasing pressure from the tank

Click here to follow the directions how to properly troubleshoot this issue.


Can't Close 1949 Lid

Lid doesn't fully close on the sprayer

  • Put the pump back in the sprayer
  • Lock the handle and turn to the left all the way until it stops
  • At that point, the triangle piece should turn under the second lip

Click here to watch a guided video.


Backpack Won't Pressurize

Piston collar could be dried out

  • Lubricate the piston collar with a generous coating of petroleum jelly (Vaseline)
  • Call Chapin customer service at 1-800-444-3140 if you still have problems

Battery Backpack Issues

My battery backpack won't turn on!

Battery backpack troubleshooting

How to fix a sticking pressure switch


Dripless Extension Wand Dripping

Call Chapin customer service at 1-800-444-3140


Nozzle Not Working

Nozzle may be clogged

  • Clean the nozzle per chemical manufacturer instructions
  • all Chapin customer service at 1-800-444-3140 if you continue to have issues


Troubleshooting and Support Videos

Tri-Lock Troubleshooting


8620B Gearbox Replacement

Professional Salt Spreader - Adjusting the Gate Linkage

Mixes on Exit (MOE) Assembly

Chapin Spreader Assembly

Battery-powered Backpack Troubleshooting

Backpack Straps Instructions

8400C & A401C Instructions

Tri-Lock 3-prong Open Head Pump Assembly