Distance Pumping and Banking
One of the very first points you will notice when you move water over a long distance is the fuel consumption of the pump motor. If your pump only has one inch ports, I am sorry to say it will not be good enough for the job. If you try this type of work with a little pump and motor such as the Honda WX10 or the small Chinese two strokes you will need a lot and I mean a lot of fuel. The poor little pumps work hard at distance, you will be forever walking back to them for refueling, it will drive you nuts. Anything say up to and over 80 meters is just too much for such pumps, you will find that they will burn out very quickly. I would only run them under 70 meters and then I would have to give it good thought before I did but that is me.
From the pump for the first 60 to 80 odd meters I run a two inch lay flat hose, stepped down into a 1 inch lay flat hose, if need be I can step down to a 1 inch lay flat if required for the last run. Let me explain why I run my hoses out in such a fashion. Friction loss is a real pain and it is quite evident over a long distance. The aim of this over bore in the lay flat is to make the lay flat into a manifold so that the spray bars are using way less volume of water than the length of lay flat is delivering to the unit this will make getting pressure at the spray bars much better, with a lot less fuel needed. Same style as how the old timers got pressure to the tip of their water monitors. If you were to run the whole length at one inch lay flat hose, you would find your jetting power is virtually nil to very poor and that is out of a bigger 2.2 1 pump under full throttle. If you ran 1 only that would work ok but your fuel usage goes through the roof by comparison. On my 2 inch lay flat hose I have fitted 1 inch polypropylene camlock fittings, I used to run the old polypropylene screw nut and tail joint but over the years the sand destroyed the threads they reached a stage where replacements were required. The camlock fittings are much easier to work with easy to use easier to joint your hose they are recommended. Even though the 2 inch hose is reduced at the joints it is the length that pays out in the reduction of friction loss. I run mostly 20 meter lengths rolled up on garden hose reels, with the odd 10 to 15 meter lengths for when I am just that little bit short on my chosen area. The pump I use is the Honda wx15 top little unit.