24.5 in. x 20.5 in. Charcoal Gray Plastic Patio Raised Garden Bed Kit with Watering System and Casters

Did you use potting soil as per the instructions? It sounds like the soil is not draining because there is nothing in the soil (peat moss, vermiculite, coir, etc.). Regular soil, even top soil won't work.

I've had very good results w zuchinni in the city picker though I usually do 2 plants.

I have five of these. Two hold four tomatoe plants and one holds a cucumber plant. In the remaining two I have three strawberry plants. I would think that it would hold 3-4 pepper plants

I fill mine to an inch or two below the top. I’ve never had any problems with my plants growing b

I’m not sure? I would contact manufacturer or Home Depot I have not had to replace mine as of yet.

The potting mix goes on top of the plastic bottom with the holes and there is a water filler tube that goes to the bottom .You pour water through the tube to the bottom under the potting mix and it gets water from the bottom up .

One large bag

I only used the cover the first season. After that it was trashed. The plants grow the same without the cover.

you could, since Tomas are determinate tomatoes, the will flush one growth and stop. you could stagger the planting 2 at a time if your weather isn't too hot and have a longer fruit time.

I would not remove the screen. I put the soil on top of the screen and I use the side tube to water. Mulch on top is a good idea. I used the black covering for the first few weeks until the seeds germinated.