Hi guys, I’m currently having issues with my drainage in the backyard. There is a low spot in the left-hand side near the piles of dirt as you see in the photos below. Do I build that area up with soil? And where should I place drains throughout the yard and What drainage is recommended to run there as I’m not too familiar with drainages on yards and what not as this is the first property we have purchased and not previous experience in drains but pretty handy once I know what needs be done. Thanks
this picture is what it looked like had a above ground pool.

this is up the side of the house just to the right of the picture is a double side access gate.

The garden on the right with the banana tree is being removed and two big veggie gardens going in (in future) timber garden edging going in soon along back fence.

picture bellow is my main issue the pile of dirt/ pebbles is what I removed from the area could I spread it to fill the low area?

picture between two garden sheds is holds water and always soggy, there is a damn point connected to the stormwater drain just on the left-hand side of the photo on the corner of the house there that’s where I was planning to return all my drainage discharge lines to that stormwater. Would you recommend doing that?
