In a secondary test, soda crystals were ineffective against:
| Treatment Group | Mean Clearance (%) | Standard Deviation | Observation | |----------------|--------------------|--------------------|----------------| | A (Cold water) | 7.2% | 2.1 | No change; fat solid. | | B (Soda crystals + hot water) | 83.6% | 4.3 | Grease turned whitish, slippery emulsion; pipe walls clean. | | C (NaOH) | 96.1% | 2.8 | Complete dissolution; high heat, but residue sticky. | soda crystals blocked drain
t-test between Group B and Group A: p < 0.001. Group B vs Group C: p = 0.02 (significant but less effective than NaOH). In a secondary test, soda crystals were ineffective
: Boil the kettle again and flush the drain thoroughly with hot water to wash away the dissolved grease and remaining crystals. Advanced Treatments for Stubborn Clogs | t-test between Group B and Group A: p < 0
