Skip to main content
Rotten bottom rigFishing. Rig body, Weak link, Lead, Hooklink, Hook.SEABED

Fishing. Everything is normal strength except one deliberate 20 cm section of 6 to 15 lb line above the lead. It fishes exactly like the rig it is built on.

Targets

  • Conger
  • Huss
  • Rock species

Baits. Whole squid, mackerel fillet, crab

What it is made of

  • 1Rig bodyNormal 60 lb body, any hook arrangement
  • 2Weak linkDeliberately light line, 6 to 15 lb, between rig and lead
  • 3LeadCheap. You are going to lose it, that is the plan
  • 4HooklinkFull strength, unaffected by the weak link
  • 5HookSized to the fish, 4/0 and up for conger

Tie it

  1. Tie your normal rig as usual.
  2. Instead of a lead link, tie in about 20 cm of 6 to 15 lb line.
  3. Lead onto the end of that weak line.
  4. Use the cheapest leads you own.
  5. When it snags on east-coast rock or kelp, pull steadily and the weak link goes first.

The weak link must be the weakest point in the whole setup. If your hooklink or shockleader is lighter, you will lose the rig and the fish instead of the lead.

When to fish the rotten bottom

A rotten bottom joins the lead to the rig with a deliberately weak link. When the lead jams in rock or kelp, the link breaks, the lead stays behind and the rest of the rig, and any fish on it, comes back. Over heavy rock and kelp it is the difference between losing a lead and losing everything.

When to leave it in the box

On clean sand it is pointless, and an over-weak link will break on the cast itself. It is an addition to a rig, not a rig on its own.

How it goes wrong

  • A link so weak it snaps under casting load, sending the lead off on its own.
  • Expensive leads on the weak link. The whole idea is that you expect to lose them.
  • A link so strong it never breaks, which just makes it a normal rig with extra knots.

Other rigs for the same fish

  • Pulley pennel

    Best for rough ground. Also takes huss, conger eel.

  • Pulley

    Best for rough ground. Also takes conger.

Affiliate disclosure: This page contains Amazon affiliate links. Irish Shore Fishing earns from qualifying purchases as an Amazon Associate, at no extra cost to you.

Buy the parts

What you need for the rotten bottom

Tagged Amazon.ie links for the published east-coast parts list. Prefer a pre-tied pack when you want to fish now; otherwise buy the hooks, leads, and terminal below.

Buy on Amazon.ie, Shore fishing rigs mixed pack (12 pack)

Pre-tied · primary

Mixed shore patterns for ledger, flapper, and paternoster sessions.

Your marks

Your marks, one glance away.

Pin a mark and it sits here on every page with today’s verdict and its best window. Kept on this device.

Find one to pin: 20 Wicklow marks · 17 Dublin Bay marks

Sign in to keep your marks on every device and get free alerts.