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KMatt827

New Member

Posts: 2

Location: USA

1

Saturday, May 5th 2007, 6:06pm

Loss of Pressure at the motor

I seem to have pressure loss at the motor. If I supplement the water by connecting a hose from the house to the spicket, the water flow is fine and the motor runs quieter. I cannot find where the pressure is lost at the motor.

I have replaced both the input and output PVC joints. I have replaced the shaft seal/gasket to the pump, but the pressure loss is unchanged.

I suspected that my shallow well is drying up, but my local shop doubts this is the issue, because the water quality is good. There is no debris nor sand, and the water does not produce rusting.

A separate issue; My controller uses a K-rain 110V Motor(1111025). I keep having to replace it ($40) due to the 5-cent plastic gear that keeps stripping. Any help on preventing this from happening, and a source for the gear, alone, would be appreciated.
KM. FL ST AUG LAWN

Wet_Boots

Supreme Member

Posts: 4,025

Location: Metro NYC

2

Sunday, May 6th 2007, 5:14am

Sounds like you're in Florida, and you have a shallow well (well point?) feeding a system using an 'indexing valve' to control the watering. If you're in a drought situation, your water table might be lower. A well point can get clogged.

KMatt827

New Member

Posts: 2

Location: USA

3

Friday, May 11th 2007, 5:27pm

Yes, from Florida, using an 'indexing valve'. But, I am not familiar with the method that the shallow well was dug. Perhaps, it is a 'well point' system.

This has been a long term problem. My St. Augustine lawn has barely servived for the last two years. Each Spring for the last two years, I've tried to resolve the problem, but usually end-up just dragging around the hoses all summer, and praying for rain. Suprisingly, Most of my lawn is still around, since it had been well established and deep rooted.

So, how would I unclog a well-point ?
KM. FL ST AUG LAWN

Wet_Boots

Supreme Member

Posts: 4,025

Location: Metro NYC

4

Saturday, May 12th 2007, 10:08am

The inlet screen on a point can accumulate enough sand and silt to block the inflow of water. Unclogging it is done by forcing water back down the well point, then pumping in the normal fashion. It can take several repetitions to get the particles moved out of the way of the inflowing water. I use a fine mesh strainer on my own well point installations, and can see when I no longer am bringing up particles in the water.

As for the K-Rain controller, I can't help, except to suggest looking for an Intermatic or similar, like Paragon or Tork. I'm assuming the clock is turning the pump on and off. http://intermatic.net/Default.asp?action=prod&pid=9121&sid=233&cid=51&did=5

jmduke7

Advanced Member

Posts: 158

Location: FT. Walton Beach, Florida

5

Sunday, May 13th 2007, 3:14am

Boot is correct. The Intermatic controller is a much better choice than the K-Rain / Hydrotek. As far as the loss of pressure goes, I need to ask you a few questions. Does it appear that water wants to come up / bubble up through all of your heads at the same time on all of the same zones. Does your indexing valve stick on the same zone or perhaps skip on to another and get stuck there? What brand / make of Indexing valve do you have?
Josh
Irrigation /Landscape Lighting / Pump and Well Specialist

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