Floating roof reel type ground

In a fluid/liquid storage tank with a sidewall and a floating roof floating atop the fluid/liquid, an improved grounding system comprising:

• a reel connected to the sidewall;
• said reel having a low impedance conductor for lightning related frequencies connected to the floating roof;
• said conductor comprising a bare braided aluminum cable;
• said reel having a take up spool which keeps any slack out of the conductor and maintains a shortest fractional length;
• said spool having a rewind spring assembly that produces about 80 to about 90 pounds of rewind tension at a maximum payout;
• said reel having a cable guide with a built in cable stop anchor and a low resistance connection to a spool axle;
• wherein an excess length of said conductor is wound around said take up spool thereby shorting together adjacent sections of said conductor wound around said take up spool;
• said conductor having a cable stop;
• and
• said reel having a U shaped mounting bracket that bolts to a flat indent on a left end of the spool axle and to a flat indent on a right end of the spool axle.