the above will work. Ideally, fill a washing up bowl with boiling hot washing up water. Submerse it and stir it around a bit with a wooden spoon or something to really make sure it's all submerged and worked around so the wax can float up. Then you have to keep it submerged until the wax solidifies, either weigh it down, or add cold water.Immerse it in boiling water until all the wax melts off and floats to the surface. Then leave the wax to cool and solidify before scraping it off the surface of the water. Then reclaim filter?
Only washing soda....never caustic soda.try hot water and add washing soda or caustic soda it should
turn the wax in to a soap which can be washed away in hot water.