GET TIGHT TO THE WEIR FOR PERCH AND BARBEL
THE two species most likely to be found directly under the weir itself are perch and barbel. Both benefit from the back eddies created by the pool that will bring food items their way.
For barbel, it has to be the straight lead using a big weight to anchor the bait in the flow. Give the fish a bait they can’t miss – a fishy or meaty boilie or pellet between 10mm and 16mm, or even an old-fashioned piece of meat of a lobworm. However, it will be vital to use a lead clip system as this will allow a fish to escape should you lock up in a snag. Also ensure your tackle is up to the job – that means a minimum of 12lb line and a size 8 hook.
To feed, a PVA bag packed with pellets and chopped boilies will ensure a patch of feed around the hookbait but be sure to thread the bag on to your hooklink – nicking it on to the hook will see the bag ripped off by the flow long before the rig settles.
If perch are your target, then investigate back eddies or slightly slower water to the side of the main sill, which is a super ambush point for perch.
A legered lobworm will sort them out but a brilliant way to locate the perch is to cast around with a lure rod and a small jig. This will locate any fish in the pool and you can then cast a legered worm to the best spot to try and catch a specimen.