Install New Supply Line

What happens here

Remove any old compression fittings from the toilet tank's water inlet. Take the new Fluidmaster braided flex stainless steel supply line (12-inch length, 7/8-inch ballcock by 3/8-inch compression) and screw the larger end onto the toilet tank's inlet. Hand-tighten this connection. The Fluidmaster brand features a 'Twist 'Click' Seal' that indicates proper tightness, often with two clicks. Then, screw the smaller end of the supply line onto the newly installed angle valve. Hand-tighten this connection as well, and use a small adjustable jaw wrench for a final snug tightening, being careful not to overtighten to avoid damaging the plastic nut.

Goal: Connect the new flexible braided supply line to both the toilet tank and the newly installed angle valve.