<HTML>In a message dated 3/28/02 5:51:45 PM Central Standard Time, oleg-i@wanadoo.fr writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">The only time I used water (and a very little wall paper remover) on grand damper felts, the water goes in the wood and leave ugly marks on the sides (and I did not even install them in Tepperware or a recipe, only soaked the felt, put the heads back on a tray and wait 30 min). </BLOCKQUOTE> Isaac That is why I would hesitate to use Roger's method. With the way I do it, the wood doesn't sit in the water. Only the felts gets wet. But I would doubt that with the kind of hardwood the damper heads are made of, that water will soak in, to the point that it will stain the wood. I think that this might have been a one time thing. Try it on your next set, and see if it does it again. Wim </HTML>