Quote Originally Posted by Michael Hoth View Post
how do you clean the water slots as there is no outlet?
Not sure you'd ever need to. After a long time some algae might form but this is preventable with the addition of "stuff"( I don't know what) in very small quantities that prevents algae forming.

Alternatively drain the slots of all chemicals and then pour the water out of the slots or syphon it out

pentaxuser