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Can someone tell me the formula to determine GPM for different slot sizes of well points? For example, in a perfect conditions if I have a sand well point that has a slot size of .006, 1 1/4 pipe width, and the screen length is 36 in how do i determine best case GPM? What if i take the same...

Is there ever a scenario in which if you oversize a lateral line and it can cause issues? (Pressure, etc?) For example, I have a 6GPM city feed currently. I am putting in a sprinkler system now. In a year or two I will have a 15-20 GPM or more well system. Can I put a 1 1/4 lateral pipe in...

Hello, is there a formula to determine GPM when you know pipe size and slot size. For example what would my GPM be with: 1 1/4 inch pipe X .006 slot size or aka 100 Mesh 1 1/4 inch pipe X .010 slot size or aka 60 Mesh 1 1/4 inch pipe X .020 slot size or aka 30 Mesh 2 inch pipe X .006 slot...

Hello, How does one prime a suction line/pump when using a check valve? Let's say you have a pump, a few feet before the suction line goes in the ground you have a check valve. Then you have 10 feet of the suction pipe that holds nothing but air until you hit water in the ground. How does...

I live in a urban area that doesn't have access to stores with well points or have drilling companies near by. The only well points im finding are the mesh kind. Does anyone have a place they know of where I can buy a slotted 1.25 or 2 inch sandpoint? Thanks for any recommendations.

Hello, If you drive a Sandpoint down into the ground there is no foot valve. Since you do not have a foot valve is it possible to hook up the sandpoint to an electric pump for irrigation. Or will the pump always loose prime with out a foot valve. Is the answer to this to put a check valve on...

Hello all, Can someone tell me the best material to connect two threaded metal pipes in a sand point install. I was going to use pipe dope to screw two threaded pipes to my sand point. However, I then read a post about Neo-Fermit and hemp fiber to seal the pipe so its a sealed vacum. Can...

Hello all, I have a 21 foot well. 10 feet to water then 11 feet of water. 4 inch casing pipe with a 1 1/4 suction pipe connected to a shallow well pump. After priming my pump the pump pulls up water for a minute and then goes dry. It doesn't appear that it stops because I have depleted all...

I understand the concept of friction when going from a larger pipe diameter to small. However, what happens in reverse? For example, I have a well pump that has a 1 inch output and I have 1 1/4 sprinkler lines coming of that 1 inch pipe. Since the well pump has 1 inch output does that mean I...

Hello, I have a well that I just dug. It is sandy soil (6 blocks away from a beach). I dug 10 foot down and hit very wet sand that when pulled out turns into a small pool of water. I then excavated another 10 feet of sand that turned into a pool of standing 10 foot of water. Two questions...