Washing the spin columns from PCR purekit - (Jul/07/2008 )

I was wondering if we can reuse the spin columns from the Qiagen PCR purification kit. If its possible can someone tell me how is it washed?

For PCR product... well first, i would keep 1 column for 1 pcr product.
Here is there an article posted by Calvin : http://www.protocol-online.org/forums/inde...showtopic=24317