| Another trick artists use when using white spirit to wash out brushes.
Get a very fine piece of zinc mesh - the stuff they sell in car shops and form it around the inside of the jam jar. Fill the jar up enough to cover the mesh and when washing the brushes you can brush against this mesh to remove the paint - kind of looks a little like a tea strainer with a bowl shape pushed into the jar.
Also get yourself a large capacity steel container and stick it in the shed on a bench off the ground so the bottom doesn't rust out, An old catering sized container and then any old white spirit can be poured into this. The paint crud will settle in the bottom and the white spirit recycled - clean stuff can be poured off from the top. The really fussy can also filter the white spirit through a coffee percolator filter.
A bit stinky but a nice way to get a supply of clean white spirit and gets rid of all those murky jars in the cupboard under the kitchen sink.
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