(information),5 hp engine, water pressure at pump 76psi, hose length
10m,Hose diameter 40mm, Volume flow 250 litres/minute.
(Question), What would be the water pressure at the hose outlet and
how long will it take to empty the pool which is 25m by 12m and an
average of 1.5m deep.You can get a 20m long hose which would suit you
better but the diameter hose is reduced to 25m. What sort of pressure
would you get at the hose do you think it would be enough. The
Poisseille equation you use for the above calculations assume laminar
flow.
Is that assumption valid.