Recommendation on a cistern pump

[bhk.la1]

I have a 15,000 gallon cistern tank that a pump is would be just above it pulling roughly 10 to 12 ft of suction and then it is pushed uphill about 9 ft elevation of 140 ft of inch and a quarter pipe up to a booster pump that booster pump then basically pressurizes for for sprinklers for an arena. The booster pump needs a minimum of 30 gallons per minute for one single sprinkler so I'm trying to figure out what pump I would need to pull the water out of the cistern to basically push it up to that booster pump at minimum 30 gallons a minute with the length of the pipe being about roughly 140 ft. The system was working before with just regular 1-in City water pressure to that booster pump so this would basically is just collecting the rainwater into the cistern as sort of to help you know alleviate the cost of the city water so the system works from the booster pump to the sprinklers it's just that changing out from the city water to the cistern tank water

 

[Valveman]

Shouldn't lose but 15 PSI to suction lift, friction loss, and elevation. Sprinkler will probably need 45-50 PSI. I would shoot for 30 GPM at 60 PSI. A submersible hanging in the cistern would be better than anything suction lift with a foot valve and having to keep primed. A 30 GPM, 1.5 HP submersible would do the job. Normally a couple of 119 gallon size bladder tanks would be needed for a 30 GPM pump. But a CSV3A2T Cycle Stop Valve and a 44 gallon size pressure tank will do a much better job.

You could also split it up with two pump for redundancy if you wanted. Might even be less expensive. A couple of 15 GPM, 3/4HP submersible pumps would do the job with a PK1A kit to control each one.

I'll also post a picture of a centrifugal if you want to go suction lift.