Hi there, Apologies if this sounds or is a daft question to ask, but... Using tap water to mix with print developer, can the chemical quality of the tap water affect how the paper reacts/works? Not talking about "sediment" i.e. crud or rubbish debris in the water but the chemical make up of the water - like fluoride in the water. Not specifically concerned with fluoride but any chemical that might be present in tap water and may not be present in "pure" water and if it can affect how a print reacts in the developer. Hope this vagueness makes sense, will try to clarify if needed but all responses welcome. :munch: Cheers, Sim2.