San Diego Slackers on Instagram: "[LA MESA — Sat Dec 6, 11:30 p.m.] A water main burst on Morengo Ave late Saturday, buckling the street and sending a lot of water down toward Fletcher Parkway. Engine 11 even had the pavement give way under them and had to pull forward to avoid getting stuck. Helix Water District shut down the line, dug about 4 feet to reach the break, and worked overnight to get everything repaired. Some homes lost water until the morning. Even with all the chaos, the neighborh