192 



GRIFFIT 



The use of pressure tanks instead of elevated tanks for supplying water under pressure is becoming more and more uni- 

 versal each year. The pressure tank is nothing more than a heavy, carefully made air tight steel tank into which the water 

 is pumped. When the tank is what is commoniy called empty, it is really tull of air. Into this tank which is full of air water 

 is pumped and as the air cannot escape from the tank, it is gradually compressed until, when the tank is two-thirds full of 

 water, you have a back pressure from the air equal to that you would get from a tank elevated 100 feet. If a high-grade 

 tank like those furnished with our Invincible Outfits is used and the connections properly made you will have to pump new 

 air into tank in very small quantities. The only reason for pumping air being to replace that which is absorbed by the 

 water and drawn off. To replace this air, different devices are used. Sometimes simply an air cock in the suction pipe of 

 the pump, or a Hydro-pneumatic Cylinder or a separate air compressor, which devices are listed here. The advantages of 

 a pressure tank system are its absolute reliability, Us simplicity and as these tanks are either placed in a cellar or buried in 

 the ground, with the end extending into the cellar, the water is kept an even temperature, being neither very hot in Summer 

 or freezing cold in Winter; this is a big advantage in watering stock. It does away with the necessity of having an elevated 

 tank in house which is undesirable or an elevated tank on tower outside, which is frequently unsightly and very liable to 

 freeze up in cold weather. . THE PROPER SIZE TANK TO SELECT. 



The proper size of tank depends upon the total water consumption and the method of pumping. If the pump is oper- 

 ated by electric motor where reliable current is available, a small tank will give comparatively good service. In a case of 

 this kind, we would suggest a tank with a total capacity of twice the usual daily consumption, although if an automatic 

 switch is used a tank with a total capacity equal to the daily consumption will give good service. Where an engine is used 

 for pumping, we would suggest a tank of a total capacity of not less than twice the number of gallons used daily. In fact, 

 we consider it better to use a little larger tank than this. When you are pumping by hand, we would suggest twice as many 

 gallons capacity as the daily consumption; and, if pumping, by windmill, a tank with a total capacity of from four to six 

 times as many gallons as are liable to be used daily. 



INFORMATION BLANK, 



We would be glad to mail on application to any one interested in the installation of an Invincible Water Supply Outfit, 



one of our special information blanks which will enable you to clearly give the information which will enable us to intelli- 

 gently recommend suitable equipment. 



THE KIND OF PUMP TO SELECT AND PROPER POWER 

 TO OPERATE IT. 



While we show here two complete outfits which represent 

 installations which are very frequently made, it is impossible 

 to illustrate in the limited space available, combinations 

 which suit the requirements of every one. The depth of well, 

 the amount of water supplied by it, amount of water required 

 per day, the kind of power most convenient to use and many 

 other conditions make it necessary to give individual con- 

 sideration to each ca^e. In order that we may properly ad- 

 vise our customers as to what thev should have, on the fol- 

 lowing pages will be found fully illustrated and described a 

 line of pumps, pumping windmills, engines and electrically 

 driven pumps which will meet all ordinary requirements. 



VERTICAL AND HORIZONTAL TANKS. 



Invincible tank 6 feet long and shorter are regularly fur- 

 nished tapped to set vertical. Longer tanks are regularly 

 tapped horizontal. Any tanks, however, can be furnished with 

 either vertical or horizontal tappings and this makes no dif- 

 ference in price of tanks. Wherever it is practicable to use a 

 horizontal tank we consider it preferable. 



LIST OF INVINCIBLE TANKS. (Plain Tanks Without 

 Fitting's.) 



INVINCIBLE WATER SUPPLY OUTFIT WITH MYERS 



GASOLINE ENGINE. 



The above cut shows a popular outfit where water is to be 

 pumped from shallow well, cistern or spring. Price of this 

 outfit as shown, not including piping, consisting - of 36"zlO' 

 tank, \y e . H. P. Fuller & Johnson and No. 612 Bulldozer power 

 pump, with air attachment. $380.00. 



Prices on this outfit with larger tanks or on similar outfit 

 with special head, for deep-well work quoted on application. 



The hand outfit shown here consists of an Invincible Pneu- 

 matic Tank with a Mvers Double Acting Hydro-pneumatic 

 Pump, which will pump both air and water. This type of 

 pump is suitable for wells not deeper than 25 feet. Price of 

 outfit with a 30"x6' tank which has a total capacity of 220 

 gallons and an P.285A Myers 2%" double acting pump with 

 the necessary valves and gauges. Price complete as described 

 and illustrated with the exception of the piping and pipe 

 fittings, $138.00. 



imeter 



Length 





Capacity in 



List 



Our 



'nches. 



in Feet. 



Weight. 



Gallons. 



Price. 



Price. 



*24 



5 



425 



120 



$105.00 



$78.75 



*24 



6 



445 



145 



115.00 



86.25 



24 



8 



560 



195 



140.00 



105.00 



*24 



10 



675 



245 , 



165.00 



123.75 



♦30 



6 



560 



220 



154.00 



115.50 



*30 



8 



700 



295 



189.00 



141.75 



*30 



10 



870 



365 



224.00 



168.00 



30 



12 



900 



440 



262.00 



196.50 



36 



6 



750 



315 



206.00 



154.75 



36 



8 



900 



420 



251.00 



188.25 



36 * 



10 



1050 



525 



291.00 



218.25 



36 



12 



1200 



630 



331.00 



248.26 



*36 



14 



1400 



735 



376.00 



282.00 



42 



8 



1450 



575 



367.00 



275.25 



*42 



10 



1650 



720 



429.00 



321.75 



42 



12 



1900 



865 



491.00 



368.25 



42 



14 



2200 



1000 



553.00 



414.75 



42 



16 



2400 



1150 



620.00 



465.00 



48 



10 



2000 



960 



504.00 



378.00 



48 



12 



2320 



1130 



574.00 



430.50 



48 



14 



2610 



1300 



648.00 



486.00 



48 



16 



2900 



1500 



722.00 



541.50 



48 



18 



3600 



1700 



795.00 



596.25 



48 



20 



3950 



1880 



873.00 



654.70 



48 



24 



4650 



2260 



1017.00 



762.75 



The above tanks are all tested to 125 pounds air pressure. 

 The water storage of the tank is about two-thirds of its total 

 capacity. 



Manhead in any of the above tanks, $12.00 extra net. 

 *Tanks carried in stock. 



ACCESSORIES FOR INVINCIBLE PNEUMATIC TANK. 



Our Price. 



Water Gauge $3.00 



Pressure Gauge 3 - 00 



No. 18 Double -Cylinder Hand Air Pump 20.00 



Myers Hydro-Pneumatic Cylinder, 3-inch, for use with 



2% -inch water cylinder 18.00 



Myers Fig. 1539 Hydro-Pneumatic Cylinder 3%-inch, for 



use with 3-inch water cylinder 21.00 



Power Air Compressors, see Page 193. 



ALL PRICES IN CATALOG SUBJECT TO CHANGE WITHOUT NOTICE. 



