help with money plant

[denniscampbell]

am staying in India for some time now and planted money plants in the front of my apt house, 1st floor, in two large planter boxes for the past 3-4 years...they have covered the front lushly and seem to very happy ...... (.water with 2 of liters of water 3 times a week for each planter, 18" wide x 36" long x 36"deep, bottom is filled with 4' sones for runoff, light insecticide, when needed, feed them once every six weeks with compost ).....came back from 4 mos away and the leaves are gone on 40 % and many climbing vines are bare and there were many yellow leaves and a couple of vines that were green but drooping , removed all yellow leaves and droop (person who was to watch the plants did not do their job)........ faced with how to return to its happy self......watered until run off then let dry, fed with composting soil. need help with what to do........, starting over would be devastating, am afraid to cut vines not being able to tell if they are attached to healthy growth........ confused ....any help is appreciated
thank you dennis