
Aqua Man
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It's all in the pipe size imo 1/2 probably need a pump to get the flow rate needed. Going with the biggest diameter for as far as you can will increase the flow rate of any gravity fed system as long as it's a slight decline. This is because the weight of the water is what build pressure so the fuller the tank and talle it is the more pressure is creates. Larger pipe in gravity fed the more water and that means more pressure as well as more flow.im thinking the head pressure,as it goes down the hose it is reduced
330 gph from pump 270/10 ft 198/20ft 114/30ft 60/35ft of gallons per hour,so it falls off pretty quick with stretch of hose or piping
from what i understand if i go to 1/2 hp pump it will suck the hose in so it will need a reducer,im wondering if it would have any issues with a pvc pipe,which ever way i need something in between ,i know nothing about all this hahahah,i do have a 250 gal tank sitting idea that i could fill with nutrients ,but gravity feed would take all day to water a 3ft x12 ft raised bed,ive tried that and not gonna cut it haahah
Water is aboit 8.33 lbs per gal so the higher you make your water source and larger the pipe the better.
Could run ridged PVC like 2" and then connect a smaller hose/wand near the target area. Any corners will slow flow so I suggest 2 45 angles when possible over a 90.
Head pressure builds much faster at level or incline. So keeping the piping on a decline is important.... even a small decline.
Also pump placement is important. Have it feed the pump from the bottom of the water supply. This will take advantage of gravites pressure on water and help the pump push instead of work against it.
You will need a shut off as with most pumps this can create a siphon