The end of your spray season is the time to clean, inspect and prepare your sprayer for next years use. It is surprising to see how many sprayers have been parked at the end of the spray season still needing repairs or have leftover spray material remaining in the tank.
After confirming that the tank is empty of spray material, remove the line strainer and clear any debris that has collected on the screen.

Fill the tank with at least 25 gallons of clean water and circulate the water through the tank, boom and hose reel. If needed, use one of the commercially available tank cleaning products to remove heavy spray residues. Follow the label on these products to gain the most benefit.
After running, dispose of the rinsate in accordance with local laws. Remove the line strainer bowl and place it with the removed spray tips and tip strainers (the tank fill basket makes a good storage location). Make sure that the pump, hoses and lines are completely empty. Use a shot of compressed air to clear the hose on the hose reel.
The color on an SDI tank is impregnated in the gel coat. A little bit of fine rubbing compound combined with a little bit of elbow grease and your tank can be buffed out to look just like new. Add a coat of wax to keep that new sprayer shine!