The H-Factor

Reducing Entropy

Recent Posts

Unblocking a Group of Files

After downloading a file, it is often Blocked. You must right-click on it, pick Properties and then check the Unblock item: But doing a dozen or more files gets old, real fast. I just learned a way to Unblock a batch of files at once. It involves using PowerShell, a Microsoft tool that is a…

Adding Hanger Types to HydraLIST

If you want to use a new type of hanger, or are a fab shop that gets a job from a contractor that uses a hanger type that you do not have, it is easy to add that new hanger type to your own machine. A hanger is an assembly, and an assembly is just…

Welcome

Recently our previous blog service (Typepad) ended their business – so, we have a new home. It will take a bit to get images back and displaying properly, but we are working on it! Final pageview count of original Typepad blog: 387,232

October 2026
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Author: art

  • Another quickie, this one posed by a customer – Why am I getting negative numbers for my flow on part of my loop system? That is normal in a loop or grid. The negative sign indicates that the flow is in the reverse order of the direction the pipe has been input into the program.…

  • This one is a quickie and comes courtesy of Bill McKenna – Say you have multiple identical floors of a building and you only want to Autolist is once but get separate stocklists for each floor.You can list Floor One with color code “RED” Use HydraLIST to do a save as to floor two or…

  • From a Customer: We often get architects drawings that are drawn under a angle, we save these drawings as world and then create a new view (1) where we rotate the drawing that it becomes in a horizontal layout on our screen, this makes it easier to work with. Our Solution: Don’t rotate the drawing,…

  • How do you save user drawing files? How often do you back them up, and how? Do you back them up to a server? run tape backups? Please share you experiences since a number of customers have asked how others do it. One of our customers does it by changing his Automatic Save File Location…

  • I got a request form a customer today asking: "If I am using AutoCAD 2014 can one of the estimators put 2012 in his machine so he can open and preview cad drawings sent to him? If not, is there a CAD viewer program available for cheap somewhere?" Yep! There are actually three options- all…

  • This one is a bit esoteric for most of you but it is critical to our European customers. HydraCALC will not load the job properly nor print it out if the Decimal and Digit grouping Symbols are not as we expect to find them here in North America. We realize this is an inconvenience and…

  • And another thing… Even been filling out an Info Sheet in HydraCALC and get to the part where it is asking for Flow Required and Pressure Required? Wish there was a quicker way to fill those in? There is! When at that page in the Info Sheet, pick the View pulldown and pick Calc Summary.…

  • If you hit the F1 thru F12 keys in HydraCALC while in the Diameter column, it will place the nominal diameter assigned to that key into the Dia. slot! That way to can keep typing along, using only the keyboard and no need to reach for the mouse… F1 = 1             …

  • Darcy-Weisbach. It's a phrase you are probably hearing more and more of. What is it? It is a formula for calculating friction loss just like Hazen-Williams. But whereas Hazen-Williams is used for water in sprinkler pipe, Darcy-Weisbach can be used for any liquid (including water, but NFPA 13 does not permit its use). Its recent…

  • Today we got a drawing that would crash because the designer had duplicate pipes right on top of each other. There is a quick way to check for and fix this. The AutoCAD Express command OVERKILL will delete duplicate objects, among other things. Either type in OVERKILL at the command prompt or pick it from…