The building in this example is, in fact, quite simple in respect that it only has two stories that require water networks. In spite of that, you will see that it is required to define 4 Water Networks in order to perform the calculation and design correctly.
At the beginning of the first video, the architectonic layout is shown so as you see a top level at +1.80 where the main water network will be located. This network will include the system’s source node (pumping system or public supply connection point) and from here will be supplied (using three top-down Interior Risers) the same number of water networks located at -1.80 m and -1.53 m building’s levels.
Also, let’s introduce you some relevant points in this specific application of PLUMBER:
- As you know, the HUNTER’S method discriminates between the probable flow, for a specific fixture unit, for flush tank and flush valve fixtures.
Certainly, in the case of flush valve fixtures, the probable flow will be greater than the probable flow for flush tank fixtures, always for the same number of fixture units.
- The auditorium building’s occupancy is of public type and, in such cases, codes and standards usually establish that sanitary fixtures such as Water Closets and Urinals be provided with flush valve and that’s why it is necessary to perform some modifications to the PLUMBER’S project in order to correctly apply the HUNTER’S method in your design.
- You will see, at the first video’s 4:12 minute mark, how we perform the type of occupancy for this project, highlighting the fixture units’ columns to be used and, finally, how we adapt the probable flow values with the new feature added to PLUMBER that allows the modification of the ones from the HUNTER’S original method.
- Then the process of water network creation in the drawing area is shown, and you will note a new additional feature: the possibility of automatically performing the numbering of the nodes’ labels taking into account the sanitary fixture’s abbreviation. Thus you no longer need to be concerned about the number that corresponds to any sanitary fixture, especially when similar fixtures exist in the same water network.
- Having drawn the water network, and coming back to the HUNTER’S method and flush valve fixtures issue, you will see how we set, through the pipes section’s properties dialog (minute 12:30 of the first video), those that directly or indirectly supply sanitary fixtures with a flush This is what will guarantee that the corresponding probable flow values from the HUNTER’S table are taken.
- At the second video, we finish the system’s construction by drawing the 3 remaining water networks and assigning them to the corresponding Interior Risers at the main water But, in the specific case of the level -1.53 m water network, we’d like you to review how we use the “User defined fixture” to model the ascending fixture riser to supply more than one fixture, in this case supplying two lavatories. This can be seen at the 7:20 minutes in the second video.
Finally, you can see that, once the calculations and design are done that the software will show, using messages and icons in the drawing area as well as in the Nodes and Pipes tables, which are the most unfavorable nodes in the plumbing water system and which ones are the nodes with the lowest outlet pressure.
Overall, you have 25-minute long videos with which you will definitely become an expert at designing plumbing water systems with PLUMBER.