KG. The whole concept behind float fishing for carp is to trick the carp in taking your bait. Like i said it is the same as static fishing but you are using a float as your indication when the carp takes your bait and you dont feed as much. Float fishing is a day session method and can put more carp on the bank then what you would doing static fishing over a period of 48 hours. Its been proven many times.
When reaching the water you need to try and find structure close to the bank and see if there is any movement or carp feeding in those areas. From that point before you set up your equipment you need to feed three spots in and around that structure but a few meters apart, the reason behind this is that fishing with a float you can just whip out the float at anytime and place it on one of your other feeding spots where you can see carp feeding and with a float been so lite it will not chase the fish out your swim.
To answer your question about just leaving your rods, definitely not. You need to watch that float because once it lifts or disapears you need to strike immediately or else you may as well just fish static with out the float and wait till the carp runs.
Many fisherman have their exitement thing at the waters side, some like the sound of a centre pin reel running, some like the sound of their alarms, me I love the sitting there watching my float waiting for the slightest lift knowing that in any second it will lift right up and bang! Fish on. And the best part of all, you do not need to be a brain surgen to know how to do it and you do not need 10 million baits and 50 different kinds of equipment. 2 Rods max with small reels, a variety of floats, bread, bread paste some sweetcorn and my personel favourite a bag of 14mm plain boilies.
For your feeding all you do is get some corn pellets, chop some of the boilies up and add a handful of sweetccorn, feed those three areas and start with the sweetcorn, if nothing has happend in an hour all you do is change your hook bait to either bread or the plain boilies. I will put my C#CK ON THE BLOCK if you do not catch anything within in hour and if you are quiet enough and do no move around to much you will have carp in your swim all day and could possibly have the best session you have ever had.
All in all you need to find dams that have nice dropoffs, plenty structure, over hanging willows, quite quiet along the bank. The water must be at least a meter deep 2m from the side. Look for bays that have reeds and margins that have over hanging trees. I will tell you that you get a crab problem sometimes because you are fishing so close to the side but then again who doesnt.