Solid pva bags are available in a variety of shapes and sizes but the end presentation is always the same ,your entire rig is placed inside the bag a long with enough freebies to fill the bag ,once on the lake bed and the pva has dissolved, you will be left with a nice neat pile of bait and inside that bait your rig will be hidden.
Like any method on waters were solid bags are not used much they can be very effective and there suited to all sizes of of carp not just small ones, i tend to use solid bags more if its a weedy lakes and the carp are spending a lot of time in the big weed beds ,in situations like this you don't have may options but to fish were the carp are and a solid bag gives you the best presentation that will leave your hook free from all the weed on the bottom.
There is a variety of pva bags available as i said ,and different people like different size bags my favourite and the only one that i use is the small taska pva breakdown bags these are perfect for my type of fishing ,once these are filled with the the lead rig and the mainline spod and bag mix i can fish from the margins to over one hundred yards with them its the ideal size.
Another reason for favouring this type and size of bag is that once filled and tied i want it to be nice and small and compact particularly if iam fishing in the weed where i need the bag to good through the thin weed to the lake bed ,if you want to use different size bags please take into consideration what you want the bag to do, the bigger bags are ideal if you want to put a lot of bait in a bag close in but not to good for distance and the other downside of bigger bags is that it will settle on top of the weed were i like mine to be on the lake bed,
There is also different types of pva that bags are made out of there is perforated and then there is just the normal standard bag, the perforated bag has hundreds of small holes perforated all over the bag witch will allow the air to escape while your making the bag plus you will not have to puncture the bag before you cast it out, this will stop the bag from floating ,the bulk standard pva bag doesn't have holes in it ,they are slightly stronger and will take longer to dissolve , i mainly use the standard pva bag and then i just pierce them with a baiting needle ,the good point about the standard pva bag is that you can use pva friendly liquids inside them like the mainline bag and stick mix witch will give you more attraction around you hook bait.
While bags of bait and liquid can prove deadly at times it really comes into its own in the winter months, were you don't need to put in loads of bait ,most of the time i use the same mix in my pva bags i have one hundred percent faith the the mainline spod and particle mix and