How to recover best? Burn, heat or root rot?

This has happed to me before when i left the tent for a few days and on the first day the pump went mine recovered yours can too. she still has plenty of growth keeping her alive. right now may i ask why you are only using water movement and no air pumps ? air pumps and stones are a must for dwc growers for optimal growth we need to know how much air to pump into the bucket we need just the right amount too much and loads of evaporation too little and the plants suffer. my advice if your not using air stones and pumps this is a very good time to start you can still move the water too. now whats best to help her recover I would advise trying to dapen her down with a foliar spray first of all. then compleatly change her feed and res to a lower ec and fresh water between the temps of 18-22c sorry we use metric you can tell by my name lol keep misting her if you have a humidifier you can borrow or use that would be great. if the temps have risen in the tent the water temps will also rise that combined with the lack of movement in the water will have caused this along with the scorching heat so you need to get them roots in nice oxygen rich clean nutrients then try and keep the temps down as much as you can. its a never ending battle for all dwc growers to keep the water tempture at the correct parameters most resort to water coolers in the end and that works for the majoirty of people there are tips and tricks out there than can help you bring temps down adding extra air flow or adding large buckets of ice infront of the fans will also cool your grow room very well for a prolong period of hours if you live in a hot country then I would really consider ac in your grow room as then you will have complete enviromental control over the tempture in that room if thats not possible there are other ways :) dont fret my friend im sure she will recover aslong as you give her your love and growing skills :) best of luck my friend and if you ever need any DWC tips ive been running dwc buckets of all types for almost 3 years now so theres not much I dont know about these systems and my pms are always open to help and give advice on how to best use the equipment you have available to remedy the problem :) Best of luck happy growing :)