Potassium alum: how to prevent recrystallization in water?

[Antonspb]

TL;DR

Potassium alum forms crystals after cooling down of its water solution.
How do I prevent it from recrystallizing?

Dear all,
I am trying to find out how to prevent the recrystallization of potassium alum in aquaeous solution when it cools down. It dissolves in water when heated, but forms crystals when no longer hot.
Do you have any tips or ideas on how to keep it from recrystallization in water solution?
I need it so the crystals stop clogging small-diameter tubes

Thanks for your ideas and best regards,

Anton

 

[Borek]

Use less alum when preparing the solution (better yet: use solution that is in contact with the solid at the experiment temperature). If the solution becomes oversaturated on cooling solid will drop out, there are no reliable tricks that can prevent it.

More or less you are asking "what to do to keep stone in the air and stop it from falling when I remove the support"