Burnt earth as media

[Robert]

Originally Posted by cpnut

I sieved the burn earth to get the desirable size that I wanted. Most of the burnt earth is too fine/powdery, it might get compacted after some time.

How do they pack in KL and elsewhere? in Kuching they packed differently - a fine one and coarse one. I choose the later though i still sieve out the unwanted finer particles.