No. Just go ahead and start your conversion. No reason to clear the pool up when this conversion process is going to muck it up again (temporarily). You're going to be so glad that you switched to chlorine once you do this.

BTW -- I deleted your other duplicate post. I have a feeling that your post didn't show up so you tried again. New members' posts go into a moderation queue and have to be looked at and approved by one of the moderators before they will show up on the forum. After some time passes, you will no longer have to through this moderation process and your posts will show up immediately.