hydraulics

Fluid Dynamics
Who took the water out of watershapes?   That may seem a ridiculous question, but it's also an obvious one when you see as many plans as I do - and by that I mean plans intended to indicate and initiate the watershaping parts of a wide variety of projects.  Indeed, in my long experience in running an engineering-oriented firm, I've repeatedly been asked by designers to flesh out their watershape "ideas" (although in most cases vague inklings would probably be a more accurate way to describe them) and provide working drawings that reflect their "thinking."   In my estimation, more than three-quarters of these plans lack any real indication of what the designers expect the water to do or how they want it to look.  Instead, what I get is the typical overhead views with the ubiquitous "blue ghosts" or, in some cases, rudimentary sections of structures designed to contain water.  It's left to me to probe and ask questions and determine what expectations they have about how the water is to appear and what it is to do. I've endured these common plan shortcomings for more years than I care to count, always wondering
Fluid Dynamics
Who took the water out of watershapes?   That may seem a ridiculous question, but it's also an obvious one when you see as many plans as I do - and by that I mean plans intended to indicate and initiate the watershaping parts of a wide variety of projects.  Indeed, in my long experience in running an engineering-oriented firm, I've repeatedly been asked by designers to flesh out their watershape "ideas" (although in most cases vague inklings would probably be a more accurate way to describe them) and provide working drawings that reflect their "thinking."   In my estimation, more than three-quarters of these plans lack any real indication of what the designers expect the water to do or how they want it to look.  Instead, what I get is the typical overhead views with the ubiquitous "blue ghosts" or, in some cases, rudimentary sections of structures designed to contain water.  It's left to me to probe and ask questions and determine what expectations they have about how the water is to appear and what it is to do. I've endured these common plan shortcomings for more years than I care to count, always wondering
Bars and Pipes Forever
Our discussions in the last two issues have been about excavation, which leaves us this time with a big, literal void that serves as a relatively exact dimensional representation of the vessel we're building.  After we've installed the forms - a subject I've covered in great detail in a number of past columns - it's time for the installation of the plumbing and steel. Before we jump into that process, however, let me make a key point:  Although I am a knowledgeable builder who has paid attention through the years and can work his way through lots of watershaping projects without assistance, I am not
Bars and Pipes Forever
Our discussions in the last two issues have been about excavation, which leaves us this time with a big, literal void that serves as a relatively exact dimensional representation of the vessel we're building.  After we've installed the forms - a subject I've covered in great detail in a number of past columns - it's time for the installation of the plumbing and steel. Before we jump into that process, however, let me make a key point:  Although I am a knowledgeable builder who has paid attention through the years and can work his way through lots of watershaping projects without assistance, I am not
Troughs and Trenches
The design and installation of the circulation, filtration and chemical-treatment systems for the pools at St. Lucia's Jade Mountain was a task of monumental proportions and extreme technical, physical and logistical difficulty.  The effort was spearheaded by watershaper/hydraulics expert Chris Barnes, who spent months on site installing precision systems engineered to provide years of nearly maintenance-free service. Installing the circulation systems for the pools at Jade Mountain was a challenge unlike any other. I was first approached about the project by my good friend, Skip Phillips, who explained that he had already been working on the project's design for several years and indicated that it was going to be something truly amazing.  He observed that the owner and his design team didn't have anyone in place with any experience with the installation of extremely complex watershapes and suggested that I might be the one to step up to the challenge and keep
Over the Edge
From the grandest waterfall to the smallest courtyard fountain, water flowing over an edge is one of the most compelling of all watershaping “looks.”  Whether it’s a vanishing edge or a slot overflow or a trough, runnel or waterfall, these effects all use one common concept – that is, the weir. Simply defined, a weir is a barrier or dam placed in a channel behind which fluid backs up and then falls through a notch and down the face of the weir.  In most watershaping applications, water travels over the weir’s edge or brink and into some kind of lower basin, trough or pool.   Physically and visually, these systems are driven by
Brave New Worlds
If you're like me, news stories in magazines and on television that cover innovations in science and technology are far more interesting than about 95 percent of the stuff featured in the mainstream media these days.  To me, few things are more intriguing than peeking in on the
Balanced Force
Working successfully with hydraulic systems requires two things:  Understanding the definitions of the basic factors involved in hydraulic calculations and seeing how those values relate to and influence each other in the real world. The last installment in this series of articles focused on the relationship between flow and velocity with respect to water.  The related concept we’ll explore this time takes our understanding of that key relationship a step farther by exploring a specific pair of additional relations summarized by
Collective Effort
It's a tale of two visions.   One contingent in the family wanted a formal, architectural pool that would reflect the geometry of the home.  The other wanted to borrow the natural look of the lake and rock formations that flowed down the sloping backyard.  Such divergent themes are generally difficult to blend into a coherent design, but I managed to do it with a little help from some friends. The project, which involves placing a formal, geometric pool atop a formation of artificial rock that looms over a grotto and lagoon-like pool below, is still under construction at this writing.  At this point, I'd have to say that the results should be just as spectacular as the design process was arduous. My company is based in Raleigh, N.C., which, although it is hardly a backwater, is not exactly at the epicenter of watershape design or construction expertise.  To integrate this diverse clutch of elements, I felt a need to
Collective Effort
It's a tale of two visions.   One contingent in the family wanted a formal, architectural pool that would reflect the geometry of the home.  The other wanted to borrow the natural look of the lake and rock formations that flowed down the sloping backyard.  Such divergent themes are generally difficult to blend into a coherent design, but I managed to do it with a little help from some friends. The project, which involves placing a formal, geometric pool atop a formation of artificial rock that looms over a grotto and lagoon-like pool below, is still under construction at this writing.  At this point, I'd have to say that the results should be just as spectacular as the design process was arduous. My company is based in Raleigh, N.C., which, although it is hardly a backwater, is not exactly at the epicenter of watershape design or construction expertise.  To integrate this diverse clutch of elements, I felt a need to