First time corresponding, been subscribing since about #350. Live in Twin Cities, MN Growing tomatoes in pots, 15" dia. and 15" tall sitting on a concrete slab (base for a screenhouse that blew away) maintains heat during the night. Growing six different varieties, doing quite well only found 2 w/blossom end rot. The plants are protected with cages made from concrete re-enforcing mesh five feet high and anchored to the slab most plants are a foot above the cages. BUT MY QUESTION IS: I have a drip system each pot is fed with a ..35 gph dripper. The timer is set for ten minutes out of every hour starting at 11:AM to 4:PM. Seems like a lot but the plants wilt if it is set for less. What is the recommended method? Bob Addison addison@terrapin-net.com