Thats sounds pretty good, I have some old sand bags, I suppose they would be okay
Havent really got many plants that need watering though, I gues the grass could use it
What I have done the the compost heap is.......get a plastic dustbin, cut the bottom off, find a corner, and just put anything green in there, I guees the coffee grounds could go in, I usually cut the gras once a month, some the chickens eat, the rest goes in the bin, along with any of the bushes I cut back, the bin is usually pretty full, but when it comes to putting in grass cuttings, it has shrunk down a bit
I damp down whatever is in the dustbin when I put anything in there, its usually warmish at the bottom
When I do empty it, I just dig whatever there is in there into the chicken run, the soil in there must be pretty fertile now as when I put down the poultry grass, its showing in about 7-8 days and 3-4 inches in just over a fortnight
I used to have it as a raised flower bed, but the ground always dried out really fast, I couldnt get anything to grow there, I tried root veg, but they needed more water than the soil could hold, I tried flowers, they got so far, then just died off, no matter how much I watered them, so I gave up on that, so the hens have it as a run now, they seem to find plenty to scratch around, even when the grass has all gone and I leave it a few days then shut it off reseed, then let them in there after a couple of weeks
When the weather improves, I will be planting out a Jasmin plant, that is about 2 feet high at the moment, but that isnt going to need anything for a year or so, until it gets established, I may put in another one, bout the same size, a few yards from it, they are only to grow over a fence to break it up a bit, rather than just a plain fence showing