To be able to use HydraCAD with a background drawing, you need to do these simple steps: Step 1 – Start a new drawing using one of the HydraCAD templates. Answer the scale question if asked. This is non-negotiable! Step 2 – Insert the background drawing into the new HydraCAD drawing, exploded. Meaning, checking the…

If the background drawing has existing piping, you may be able to use that piping for HydraCAD. The 'may' all hinges on how the original author drew the piping. Is it from center of head to center of head (or fitting)? Is it from edge of head to edge or head (or fitting). Is it…

Say you have a background drawing that has sprinkler heads already laid out, but they aren't HydraCAD sprinkler heads. What to do? Zeroth – Do what you should always do with a background drawing. That is, start a New drawing using one of the HydraCAD templates, and then insert your drawing into it, exploded. First –…