But some reservoirs also engage in fish farming, so they didn't use concrete to cover the bottom.
For most fish ponds, the mud and waste in the water are beneficial for fish growth, whereas a concrete bottom, although clean and impermeable, doesn't allow pollutants to decompose easily. Naturally, it's more suitable to use a dirt bottom.
This is actually a choice: using concrete to seal the bottom prevents water leakage but isn't conducive to farming.
Yet not sealing the bottom with concrete fails to resolve Li Yu's initial intent of using concrete, which was to prevent any more incidents of zombies sinking to the bottom in the mud.
Just when Li Yu was feeling a bit conflicted, Ding Jiu offered a solution.
Instead of using concrete at the bottom of the reservoir, lay a layer of crushed stone underneath.
"Director Li, using stone at the bottom has quite a few benefits.
When I helped build lakes for some holiday resorts before, this method was employed.
