I am having a quality issue with my tomatoes as well as a quantity issue. I am asking for advice on possible future solutions. My current setup is single stem pruning planted in the ground trellising up twine. My soil pH is poor at 8.2. Rain events has caused splitting. Plant growth is anemic and fruit set on bloom is not what I want it to be and in a few more weeks temps will stop fruit set completely. Financially there is no chance of putting up a high tunnel, so my questions are; 1) can I use grow bags outside on a hydroponic system without having a high tunnel? I understand and accept the effect rain events will have on nutrient solution. 2) assuming the answer to 1 is yes, would I be better served with a 3 or 5 gallon grow bag? In essence, can the same system used by many in a high tunnel be used outdoors accepting the replacement of nutrient solution after rain events?