I have a 700 # Lawn Roller... Due to a few late stragglers after the spring rush, i filled and emptied my roller more times than i cared to. The last time it was emptied it was filled for approx. 2-3 weeks. Was this to long? Also, i didnt see the water as i did not empty it. I loaned it to a family member and he emptied it after he was done, but i have not went and picked it back up yet. How long do you leave water in your lawn rollers?