Recent content by GraHal

Thanks tech99. Anybody know what is the 'most hygroscopic' salt there is likely to be on the boards? Strong chance bleach was put on it and so what about ammonium chloride salt? If I heat the boards with a blow lamp to almost a charred look ... would ammonium chloride and / or any other...

Hello Everyone I have wooden floorboards (old type / real wood) which have had urine (probably pet) on them and which periodically appear wet / very wet on the surface in one area of 1sq metre or so. I have eliminated water leaks as a source and so it almost certainly is hygroscopic salts...