I think you can update your own signature. Click on settings (near where you log in) and then on the left is a place to edit your signature.

Good decision to order the good kit. It will make your pool maintenance easier.

I'll let someone else advise you about an SWCG choice.

Sorry that the moderation queue is a pain. Ben is very careful to protect the forum and its members. A way to avoid having to have your posts go through the queue before they appear on the forum is to become a subscriber. If that is something you are interested in, click the link in my signature below.