It’s not something the pump operator can do single handedly. More realistically, the pump operator has been busy getting as much water to the scene while trying to set up the multiple power jet siphon operation. #Tft syphoner build portable#Depending on the size of the portable tanks and the size of tankers/tenders backed up waiting to discharge, you could be able to tell the incident commander that you’ve got 12,000 gallons or more waiting to be sent. #Tft syphoner build full#Having three full portable tanks on the ground, linked with power siphons and tankers backed up to each is a thing of beauty for the pump operator. In reality, if you’re the attack engine pump operator, you shouldn’t have to worry about water supply issues anyway – at least not in the perfect world – as mutual aid crews should have automatic responsibilities for that. It might get a little tricky to do if you’re the attack engine and you’ve got a number of hand lines off, but you should be able to find at least one unoccupied discharges. You can even use a gated wye to get more discharges. So, the crosslays, the rear discharge, other disharges on the pump panel should be available. If you’re the supply engine, that shouldn’t be a problem because all you’re doing is keeping the large diameter hose (LDH) filled. Three or more tanks set up work the same way, but you’ll need at least two power jet siphons and two available discharges. The beauty of this arrangement is the water keeps circulating in the pump to prevent freezing in the winter and to prevent the pump from overheating from re-circulating water just in the pump. In most cases, pressurizing your suction hose is a big no-no. And don’t worry about pressurizing the hard suction in this application as you won’t be putting enough pressure to cause any damage. Make sure you tie the suction hoses down as they will tend to walk and shift the more pressure you put to them. Varying the discharge pressure to the siphon will also allow the pump operator to vary the speed in which water is transferred. You’ll have to practice at how much 1.5-inch discharge pressure works best for you. At low discharge levels, say 50 psi on the inch and half, or less, you’ll get a one-way flow from one portable tank to another at an impressive rate, not quiet the same as a 10-inch dump valve can discharge, but enough to equalize portable tanks and keep a steady flow of water to your supply line. By placing a tube or pipe at the constriction point creates a vacuum which draws the fluid through the tube.Įstablishing the power jet siphon flow is as easy as cracking open a discharge valve. The flex suctions are good for this operation as they’ll bend into the portable tanks and are much easier to handle.Īnd, as a quick refresher, a venturi increases fluid’s velocity, while decreasing the fluid’s pressure through a constriction. They work particularly well with the flexible suction lines offered by Kochek and most recently TFT. Keep in mind they’re all designed to do the same thing – create a venturi to move water. Some can run much higher, depending on the applications. The price ranges from under $100 to more than $200 depending on the size and the design. Power siphons are made by Kochek, Red Head, Action Coupling & Equipment and others. Others simply have a ring of male thread on to which a pipe with a 90-degree angle is bent and centered in the ring on one end and with a female 1.5-inch coupler on the other. Power siphons are simple devices that thread into hard suction hose and, depending on the manufacturer, have a three-point stand off with a female coupler into which a 1.5-inch hose is threaded. And, a lot more water can be transferred quickly with a power siphon. The power jet siphon allows the transfer of water from one portable tank to another with the assistance of a 1.5-inch line that creates venturi action which is far more reliable than a simple inchworm siphon.
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