After going thru some threads here.. it seems some people (who are looking to get into hardscaping 0 are skipping the fundamentals. They are worried about how to cut, edges, ETC.. while talking about not using a loose sand bed or enought compacted base.... Also, they dont understand they idea of pitch and slopes... If you were going to do a hypothetical 20 x 20 patio on relatively level ground, level with the ground off of a house.. what is the best way to ensure the pitch at the end of the patio? (Dont just say use a string line) althought myself and most people who have experience know what this means, those that dont are saying.. USE A STRING TO LEVEL?? HOW!?