Not new to photography but having a problem I have just began 10x8 photography purely for contact printing. Having trouble with drying marks on the neg. I use adox wetting agent and hang corner down but still getting drying marks on negative. I am using tap water for final wash in wetting agent, is this the problem. I had no problem with 5x4 or 5x7 negatives or do I need to squeegee of some sort.