I water twice a day, not feed. And when I stick my finger in the soil after sundown it is bone dry. In the morning it is slightly damp to dry which is the only reason I'm watering twice daily. I tried watering once a day for a week and got the symptoms you described, water drained right off. I had to soak the pots for 30 minutes to get the soil loose again. I appreciate the help, but what info do you need?
i suggest this,from the picture,the yellowing leaves are from the heat same with twist,if you cant move them,imprvice,against that fence,lack of wind im saying this because with 106 there is no wind,there close to house it looks,get a box fan and point at them during the day,some sort of shade cloth tacked to the fence to take on and off,from 2 to 4 in afternoon shade them,with the feeding try to water pot to runoff walk away come back in a hour and all that was on sides of pots that i described above will be wet and water them again try putting the hose right next to stalk and let the water hose sit there with just a trickle beside the stalk and walk away come back in 30 min and your plant will be hydrated,look in containers every thing just runs threw,as ground it will fill the hole you dug from loose dirt if you dig,that hole will fill quick then the water will absorb into the compacted dirt around it,running a slow water source to the plant will hydrate all the hole and surrounds instead of flooding,watering your plants twice a day will hurt you in long run from washing any microbes and npk values you have in it out,this is the reason you cant flush soil just makes mud,now thats explained i think you might get what i mean,water them with a slow trickle and id almost bet your problem will be gone,those yellow leaves cut them off give the plant more room for air flow if you dig they wont turn green again cut um off,give them a little wind a box fan will do the job just buy having some sort of wind instead of none,you dont have to put it right beside or in front of them ,buy the house is good enough,put the fan by house and walk to the middle of your grow,wait to see if you feel wind,if you do done deal,as far a feed,you more likely have washed all your nutes out,give them water water nutes,start with a nute feed first,this is the ticket what done is done any thing you try to throw at them now will pretty much make things worse,so feed them water slow,when you know they got a good drink give them a shot of nutes,then next time you water water then do the same slow trickle and when they are soaked give the shot of nutes just make about a gallon and pour it in the root zone,the twist is a couple things,to much nutes i dont see that from pic's clawing is to much nitrogen,i dont see that,heat cause all the above ,i def see that,i live were summer is 6 months long and spring is 6 months long so i know the signs,so like i said these are just my observations and fixs and cures,slow trickle beside the stalk will stop all that watering every day,next season that spot you have them at,work some soil and amend it for a ground grow if you need help holler ,be glad to help,for now try the slow trickle or water then walk off and come back later and water,the slow trickle will be best option,if you ever dug fence post and need it to dry to pole after setting this is were this method comes from,it works,give a try,hope this helps sorry for losing temp but i see this more than you think,i apoligize