Interesting perspective, but I'd be a bit cautious about relying too heavily on recycled slabs for drainage. I tried something similar a few years back, and while it initially seemed to help drainage, over time dirt and debris filled in the gaps. Eventually, those spaces that improved drainage ended up causing pooling issues after heavy rains. Maybe it depends on your local soil type or climate—I have pretty clay-heavy soil here, so that might've made things worse.
If you're considering this route, I'd suggest adding a layer of gravel or crushed stone beneath the slabs to maintain proper drainage long-term. It adds a little extra work upfront, but it saved me from having to redo the whole thing later on. Just something to keep in mind based on my own experience...
Good call on the gravel underneath—I learned that lesson the hard way too. Also, if your soil's clay-heavy, consider mixing in some coarse sand or organic matter...helps keep things draining smoothly and saves headaches later.
Yeah, clay soil can be a real pain...I had a similar issue when I built my shed. Wish I'd known about mixing in organic matter then—would've saved me from some swampy surprises down the road. Good tips!
Totally agree, clay can be tricky... Did you consider adding a gravel layer beneath the foundation for drainage? I've found it helps a ton with moisture issues, especially in areas prone to heavy rain. Saved me some headaches on past projects.
Yeah, gravel underneath definitely helps. I skipped it once thinking I'd save time... big mistake. Ended up dealing with moisture seeping in after heavy storms. Lesson learned the hard way, haha.