Galaxy Aqua Premier Installation Manual Now

Cut tubing ends squarely using a sharp utility knife. Push each tube into the John Guest fitting until you hear a click. To release, push the collet inward while pulling the tube.

The “Troubleshooting” section explicitly warns against: galaxy aqua premier installation manual

Before you touch a wrench, open your manual’s "Parts List" page. The Galaxy Aqua Premier typically includes: Cut tubing ends squarely using a sharp utility knife

Pro Tip from the Manual: Never throw away the packaging until you have verified the membrane housing isn't cracked. Pro Tip from the Manual: Never throw away

Most likely. Remove the tube, inspect for scratches, re-cut the end cleanly, and re-insert firmly. If still leaking, replace the fitting—they are standard 1/4” push-to-connect types available at any hardware store.