Quote Originally Posted by Atechguy View Post
POLY or lexan http://www.flotronicpumps.co.uk/temp...p=page:0004Son chemical compatibilty chart is not good for use for KOH or NaOH .
You would be correct, but the test was done with pure NaOH. The Lexan was left submerged in the NaOH for 48 hours. So far none of the units I have built have shown any sign of damage by the NaOH. I would imagine its because it highly diluted by water.