Messages

1

Pumps, Wells, Tanks, Controls / Re: water hammer

« on: July 09, 2012, 09:48:35 PM »

I pulled the pump string by hand  . If we are decended from monkeys, why didn't we keep the prehensile tail. I sure needed an extra hand.  It appears that a joint was cracked at one of the collars, because it broke as the pipe flexed. I guess that was where I was losing pressure and water.  Below that connection, the pipe stayed full of water so I knew that my pump check was good. I put a second check two inches above the pump and replaced all the couplings and fittings with stainless steel. Man, those babies were expensive.  .  I ran it back down the hole and it appears the problem is fixed. Thanks for the help!

2

Pumps, Wells, Tanks, Controls / Re: water hammer

« on: July 09, 2012, 04:05:55 PM »

I removed the surface check valve. Turned on pump and it ran smoothly for 10 minutes until I closed the faucet. The pump cycled off and then it cycled on and instantly off about every 15 seconds. When I turned the water on again, it started hammering. The pressure switch is between the CSV and expansion tank.  All this equipment is new so unless the sub. pump is defective or the CSV is defective, I'm not sure what else I can do

3

Pumps, Wells, Tanks, Controls / Re: water hammer

« on: July 09, 2012, 09:41:50 AM »

the tank is one of those little 2 gallon surge tanks. It is set about 6 inches downstream from the pressure switch and about 12" downstream from the csv. The pressure switch is a new Square D Pumptrol, factory set at 30 on 50 off. Does my pump have an internal check? Is the set up correct if I remove the surface check valve that is between the pump and the CSV?

4

Pumps, Wells, Tanks, Controls / water hammer

« on: July 08, 2012, 09:51:13 PM »

I have equipped a new well with an AY McDonald 1hp 20gpm submersible set at 90 feet. The 50/20 pressure switch is set downstream from the CSV.  I have set the CSV140 both upstream and downstream from a surface checkvalve. Either way  I get severe water hammer when I  open up at full flow. Does the pump have an internal check? Do I need to remove the upper check?