Cleaning darkroom tubes

[Tom Perkins]

The insides of the drain tubes leading from my print washer seem to have grown s ome mold. They are turning black. The ones leading out of the Jobo are a lovel y pink like that mold that gets on the snow fields in the Spring. I wonder if a nybody can tell me a way to clean these. Thanks

[Doug Paramore]

Rinse them out with a fairly strong Clorox or other household bleach solution. Let the bleach sit for a few minutes, then flush with clean water. Should take care of the problem.

Regards,

[Sal Santamaura]

How about Jobo's processor cleaning product?

[John Hicks]

Jobo warns against using bleach. I'd expect it to be ok for plain plastic tube t hough.

[Michael Pry]

Tom, The bleach will work fine but I would rinse it with good ol vinegar after which neuteralizes it and removes any bleach residue that remains.

Mike

[Pete Watkins]

If you do use vinigar (or any acidic fluid) to neutralise the bleach rinse the bleached items well with water before you use the acid. Best wishes. Pete.