G-M Services has a variety of services to offer. Please review the descriptions below and decide which one or which combination of services best fit your need. Feel free to contact us with any questions.
Well Performance Testing
A comprehensive evaluation of the well and well pumping equipment. The testing includes direct measurement of flows, water levels, discharge pressures, power consumption, sand production and vibration levels. The test normally includes measurement of all parameters at two (2) pump discharge pressures. These measurements are then used to calculate specific capacity, water horsepower, electrical input horsepower and overall efficiency of the pump/motor unit. The information is formatted in a report which includes water levels graph, pump performance curve and a brief evaluation of the condition of the equipment.
This test can identify and quantify many problems, including issues within the well structure (holes in the casing/liner, separation in the casing/liner, restricted screen openings, excessive sand production) and pump related problems such as; worn bowl bushings, worn impellers, holes in the column piping, lower than optimal efficiencies and general poor performance of the pump. In addition, inspection and vibration analysis of the above ground pump and drive components can spot excessive shaft run-out, unbalance conditions in the motor and lubrication delivery problems.
Abbreviated Well Performance Testing
An abbreviated evaluation of the well and well pump. The test includes measurement of flow, water levels, discharge pressure and sand production at normal operating pressure only. This test can be utilized to regularly monitor a known problem. This test is also popular in the summer months when our customers are concerned about water levels and pump submergence.
Booster Pump Performance Testing
This test is similar to our well test, but for water distribution pumps.
Well Camera Surveys
A well camera survey is important to perform anytime you remove the pumping equipment from the well. Usually, a survey is conducted before and after any work is done to the well to identify problems and verify repairs. G-M Services’ well camera can even be hung below the pump to determine where sand and other materials may be entering the well. Steve Kubala, G-M Services’ camera operator, has been performing these surveys for over twenty years. G-M Services operates a color video camera capable of both forward and rotating side views. Color still photographs and up to three videos can be produced simultaneously and are available immediately after the survey.
When water accountability comes up short, you may have a flowmeter problem. The inner workings of a flowmeter can become worn and fail over time, resulting in inaccurate flow readings. G-M Services is experienced at calibrating propeller style flowmeters as produced by manufacturers such as Sensus, Rockwell, Sparling and Water Specialties. We are also certified to complete meter testing affidavits required by the Harris-Galveston Coastal Subsidence District and the Fort Bend Subsidence District. If your meter is beyond repair, or it is not cost effective to repair your meter, G-M Services can find a suitable replacement for you.
Through our association with Envibe our vibration analysis tools allow us to measure quantify even the smallest vibration in your pumping and distribution equipment. This services usually accompanies our full well performance test. It is recommended that vibration analysis be performed at least annually to ensure that your motors run smooth and efficiently. A report summary and spectrum of each measurement point are included in the final report.