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<blockquote data-quote="ken2m" data-source="post: 654300" data-attributes="member: 7269"><p>Water friction will increase in a 2" hose compared to a 3" hose, the flow will be about twice as fast to get the same quantity of water through to the highbanker, as the area of the hose is about doubled with a 3" compared to a 2". What simmo said is spot on with the suction hose, keep it at 3" as any reduction on the intake (including restrictive foot valves) take more power than if it was restricted on the output. Also keep your intake as short as possible to reduce losses. Pipe friction is a major flow reducer, after running 250m of 1 1/2" polly tube a 35,000L/hour @125PSI pump was running at about 3,500L/hour, this is only about 10% of the delivery rate of the pump with no hose.</p></blockquote><p></p>
[QUOTE="ken2m, post: 654300, member: 7269"] Water friction will increase in a 2" hose compared to a 3" hose, the flow will be about twice as fast to get the same quantity of water through to the highbanker, as the area of the hose is about doubled with a 3" compared to a 2". What simmo said is spot on with the suction hose, keep it at 3" as any reduction on the intake (including restrictive foot valves) take more power than if it was restricted on the output. Also keep your intake as short as possible to reduce losses. Pipe friction is a major flow reducer, after running 250m of 1 1/2" polly tube a 35,000L/hour @125PSI pump was running at about 3,500L/hour, this is only about 10% of the delivery rate of the pump with no hose. [/QUOTE]
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