Garden works, part 2: bigger and smaller rocks

Yesterday I've purchased 200kg of grit for my track ballast. I really had no idea how much rocks I needed so I just bought as much as I could easily fit in my car. And even now, looking at the 200kg I already have, I'm unable to say whether this will be enough for my layout.

As a side note, I highly recommend finding a direct seller for the grit. High profile stores with garden equipment sell the same materials for 2x or 3x the price, so by googling a little you can save some money.

Today I've tried how my new rocks will fit my PIKO track:

Looks good to me although the rocks are a little big. Actually I had some problems fitting the ones that go between the sleepers. Seems that laying my track would be much easier if I had some finer-grained rocks for the top layer. Maybe I can filter out the bigger rocks?

Obviously I don't have a collection of sieves in all sizes waiting for the opportunity to be used. So I had to improvise...

The old grill net I have seemed like a perfect choice. So I tried that:

The result? Nope... Did not work. The spaces between the bars are too big and 90% of the rocks went through. I needed an another idea...

How about this old trash bin. The holes seem to be smaller:

Guess what... It did work perfectly. I have to say that separating the rocks using this poor sieve replacement is a hard labour. And I was not able to finish the entire 200kg in one ago. But the results are really promising and I'm able to extract the smaller stones pretty well.

So I'm going to continue that unless I get a better idea. Anyone?

***

As another side note, I'm planning to use some cement when laying the track to make the entire structure more rigid. Just as shown in this video: