<br />Easy to use with some simple steps: Pull the trigger on the gun to release the solvent into the gun barrel and discharge the solvent into a suitable container for disposal. Only stop discharging the cleaner when the solution being ejected from the gun is completely clear. Leave the gun foam cleanse attached to the gun for 5 minutes to allow the solvent in the gun to work on the residues inside. Pull the trigger once again until only clear solvent emerges. Leave for a further 5 minutes and repeat this process 2 or 3 times until the gun is completely clear.">