Pororsity Tests*-150 to 200 gram Sections of fired filters were cut out of the lip, weighed, soaked for 24 hours and then re-weighed to evaluate.

Ceramic Water Filter Test Batch No. 1
Thursday January 18, 2007
Pororsity Test*- 38.8%
******

Ceramic Water Filter Test Batch No. 2
Saturday January 20^th, 2007
Pororsity Test*- 32.2%
Mix Proportion represents 10% less sawdust than mix No. 1

******

Ceramic Water Filter Test Batch No. 3
January 22, 2007
Pororsity Test*- 34.5%
Mix Proportion represents 20% less sawdust than mix No. 1

******

Ceramic Water Filter Test Batch No. 4
January 24, 2007
Pororsity Test*- 45.6%
Mix Proportion represents 10% more sawdust than mix No. 1
******
Ceramic Water Filter Test Batch No. 5
January 25, 2007
Pororsity Test*- 49.7%
Mix Proportion represents 20% more sawdust than mix No. 1

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Opening the kiln:

The charcoal remains indicates that the firing was under done and/or the filters need to have a spacer between them. Too tightly packed.

The one sucessful filter soaking in water for 24 hours will be ready for flow-rate testing: