I just hauled 6 yards of mulch (undyed and did not haul it all at once..). I have the line-x spray in liner, blew the bed out with air hose and took it to the car wash after I was done.

I have to blow out the bed because the spray in liner tightened up the drain holes and they will get plugged and hold water.

The truck has strong order from the mulch, you can actually smell it walking up to it 5 -10 feet away. Why and how do I get rid of the smell.

 

Try washing it with soap and water, then spraying it out. To get the extra water out put the tailgate down and drive for a little while and all the water will go out the back.

 

Yeah just get a car wash fluid and mix it up in a bucket and brush your bed with it then hose of and leave in the sun for a few hours. the smeel will go away but just take a little time.

 

A vinegar/water solution might also work.

 

Regarding the holes: Use a small drill bit and ream the holes out to your satisfaction. If you don't want to do it, take it back to the dealer, he will probably do it for you.

 

Baking soda in water. Let soak.