WATER IN COMMERCIAL GARDENING. 31 



It costs as I have installed it about S40.00 per acre and ought to 

 be good for several years. 



It consists of a large main from which laterals are taken off every 

 56 feet and run parallel to one another. 



Every lateral is fitted as it leaves the main with a valve and then 

 a union fitting so that the lateral may be easily revolved. Inside 

 this union fitting is a strainer which removes any dirt or rubbish 

 which may be in the water as it comes in the main. There is a 

 handle to this union fitting and through it all the dirt collected on 

 the strainer may be blown out. 



These laterals after being set up are drilled and tapped every 

 four feet and fitted with nozzles of brass having discharge openings 

 of ^ of an inch. 



The water supply is turned on from the main and each one of the 

 nozzles begins to spurt out water which goes 28 to 30 feet from the 

 nozzle with a pressure of 50 to 55 lbs. There is always movement 

 of air enough to break up these fine streams so that when the water 

 reaches the ground it is very fine and will not injure any crop by 

 falling on it. 



The union fittings have handles by which to set the nozzle lines 

 at any angle and always at right angles to line of the lateral. 



Galvanized pipe should be used for all the laterals and for runs 

 of 200 feet I have used 75 to SO feet of one inch and the balance 

 of three-quarter-inch pipe. 



There are some parts of fields that need more water than others 

 and by placing nozzles nearer on the laterals in these places we can 

 get all the water wanted. 



The most convenient distance for laterals above the surface in 

 my experience has been about three feet, using pipe or sash bar stock 

 for posts. 



I prefer to have laterals run at right angles to direction of prevail- 

 ing summer winds as then the water will be more evenly distributed. 



In using this system for lettuce or any other plant setting or 

 watering for germination of seed the laterals may rest on the ground. 



This system is particularly good for the small grower and for 

 lawns; the water can readily be put on any time of day or night 

 as needed. 



The same system with a different nozzle is adapted to greenhouse 



