THE NEXT GENERATION IN FLOOD PROTECTION M A N U A TM L WATER GATE
TABLE OF CONTENTS How it Works .................................................................................................2 TESTED & APPROVED: Golden Rules to Follow ...............................................................................3 Make a Corner or Curving the Water-Gate ...............................................4 Connecting Water-Gates Together ............................................................6 Securing the Ends Of Water-Gates .........................................
HOW THE WATER-GATE WORKS Water accumulates inside the barrier and exerts pressure on the bottom of the fabric, which keeps the barrier in place. The speed or direction of the incoming water is not important, as it is the water pressure that causes the barrier to open up. WATER HOLDING BACK WATER The Water-Gate barrier has a ratio of 4:1 meaning the surface of the barrier on the ground is 4 times greater than its water retention height.
GOLDEN RULES TO FOLLOW Pump the water at the back of the barrier It’s important to leave a reasonable amount of space (approximately 2ft) between the building and the back of the Water-Gate. Leave room to install a water pump and be able to move freely. Rain, storm water & water seeping underneath the Water-Gate should not be left to accumulate behind the barrier. Having too much water behind the unit can cause unbalancing issues, so be sure to pump out the excess water.
ater. When the Water-Gate is curved you must take extra on to ensure that water does not seep underneath by ensuring he front has no folds that water can get underneath. Use sand or other weighted objects & place them on top of these folds. Method used to contain water MAKE A CORNER OR CURVING THE WATER-GATE Not recommended much water seeping underneath can cause the Water-Gate to slip. even As an made Water-Gates can be shaped to contain or repel water.
2. Square corner to CONTAIN the water: Please note that containing water with the Water-Gate system can be difficult & often results in excessive seepage. A - Completely unfold the Water-Gate. B - Place weights at the back of the Water-Gate as a pivot point and curve the barrier to the angle required to contain the water. C - From the red weighted side, pull the material up in the middle, spread it out & place on top. Lift the upper back walls on both sides to be sure that water can enter.
smallest 6” / 15 cm model, which can onlyWATER-GATES be connected toMUST barriers the same size. BOTH BE of COMPLETELY UNFOLDED AT THE ATTAC 13 2.5890 m /kg 8’-3” 198 m / 650 ft 700 kg / 1,550 lbs lbs two Water-Gates and laying All our Water-Gates, regardlessthe of size (water retention), can be connected Total/ 1,950 weight 29 442 m / 1,450 ft 1.56 Tm / 1.71 tons 5m /(barrier 16’-5” 1. The only) 1.91 Tm / 2.1 tons them next to the other.
SECURING THE ENDS OF THE WATER-GATES The ends of the Water-Gates are not closed off, so they must be placed higher than the level of the anticipated water. Extra Water-Gate length may be needed for maximum safety. Weight against structure to hold in place GOING VERTICAL ON A WALL Weight against structure to hold in place Every time the Water-Gate is lifted against a wall, a space is created and water will infiltrate from the corner. We strongly recommend placing one or more sandbags on that corner.
ELIMINATION OF WATER INFILTRATIONS UNDER THE BARRIER IMPORTANCE OF HAVING WATER PUMPS It is important to remove any object underneath the Water-Gate in order to prevent areas for water to infiltrate. Excessive water behind barrier causes unbalance & buoyancy. We strongly recommend having a generator to power all your water pumps or having gas operated pumps. Without these water pumps, the accumulated water may infiltrate the property.
SPECIAL CONSIDERATIONS High Wind: The Water-Gate can be installed, even in high wind The Water-Gate can be kept on the ground in very strong wind, however, some additional precautions do have to be taken. To minimize the effect of gusting wind, keep the Water-Gate folded and add a sufficient number of sandbags or weights to keep it tight against the ground. When the flood water arrives, ensure the Water-Gate is properly deployed, by pushing off any ballast weights that are in the way.
CALCULATION OF INSTALLATION TIME Units in a crate will be deployed at a nice rolling/walking speed to pull the Water-Gate out & lay on the ground. If units need to turn a corner- fully deploy out the units in straight line & then create the corner once on the ground. For speed of joining units, 2 people is preferred. One to pull & add tension, while the other attaches & smooths out the velcro from back to front each time.
FOLDING UP THE WATER-GATE FOR STORAGE It is very important to fold each Water-Gate with flaps laying flat to ensure a long shelf life. Folding the Water-Gate (model WL-1430 illustrated) 1 - After cleaning and drying the Water-Gate, stretch it out on a large flat surface. 4 - Start folding from the back so that the ballast weights will be positioned in the middle and under the Water-Gate. Use the folds already appearing on the fabric as a reference.
MAINTENANCE REPAIRS It is strongly recommended to wash and dry the Water-Gate after each use, before storing it. This allows you to check for any damages that may have occurred during use. Cleaning the product with a pressure washer or strong water hose is strongly recommended. In the event that your Water-Gate has a tear or perforation, using contact cement & a repair patch from the inside may be all that is needed.
p ar W TECHNICAL FABRIC SPECIFICATIONS PVC Fabric For models WL-06, WL-14, WL-20 & WL-26 For models WL-50 and WL-60 Properties Weight Base Fabric Minimum Specifications Minimum Specifications Tension resistance * Tear resistance Adhesion Heat resistance UV resistance Flame resistance Polyethylene woven fabric Properties Weight Base Fabric Tension resistance * Tear resistance Resistance to cold temperature UV resistance Flame resistance Woven polyester scrim Warp 40 kg/cm 245 lbs/in Fill*** 35 kg/
BEHAVIORS AND STRETCHING OF THE PARTITIONS The partitions of the Water-Gate are made of non-expandable polyethylene, a rigid material recognized for its strength. These partitions prevent the upper canvas from tipping backwards via the components principle of equilibrium of forces. PRESSURE EXERCISED ON ANY PART OF THE PARTITIONS 0 In this illustration, we can observe the pressure exerted on each part of the partition. The red indicated the robustness to tension applied on each partition.
ENVIRONMENTAL FOOTPRINT Water-Gate products are manufactured with material that can be recycled, decreasing the environmental impact. Ground Sheet & Retention Tarp PVC Coated Polyester 4% Holding Partitions Polyethylene Fabric 13% Ballast Steel Plates 26% Sewing thread & Velcro Strips Polyester 4% Straps Polypropylene 2% FREQUENTLY ASKED QUESTIONS: What happens if debris in and on the water run into the Water-Gate? The Water-Gate system is soft & flexible & flows with water.
What skills are required for installation? Is training necessary? No particular skills are required. However, basic training is recommended. Installation is simple but does require a minimum of understanding. Chances are you will find everything you need to know in this manual. If you have any questions after going through it, a technician will be happy to give you more information.
Will the Water-Gate withstand parallel water flow? Parallel water flow is not a problem. In the photo, there was more water flowing than the Water-Gate intended to withstand, and the current was swift. In the same trail with lots of parallel flowing water, we attempted to damage the Water-Gate with wood fragments. Our testing process was rigorous but did not result in any damage to the Water-Gate. What about leaks from the Water-Gate system? All flood control systems have some type of seepage.
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