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WATER PUMPS, TANKS, TESTS, WELLS, REPAIRS
WATER CONSERVATION MEASURES
WATER CONTAMINANT LEVELS
WATER FILTERS, HOME USE
WATER HAMMER NOISE DIAGNOSE & CURE
WATER ODORS, CAUSE CURE
WATER PUMP REPAIR GUIDE
WATER PRESSURE LOSS DIAGNOSIS & REPAIR
WATER PUMP SHORT CYCLING
WATER SOFTENERS & CONDITIONERS
WATER TANK REPAIR PROCEDURES
WATER TANK: USES, TROUBLESHOOTING
WATER TESTS, CONTAMINANTS, TREATMENT
WATER TREATMENT EQUIPMENT CHOICES
WELLS CISTERNS & SPRINGS
WELL CHLORINATION & DISINFECTION
WELL FLOW RATE
WELL WATER PRESSURE DIAGNOSIS
WELL YIELD IMPROVEMENT
WINTERIZE A BUILDING
Single line jet pumps on wells: This article describes the sequence of operating steps in a one-line jet pump water system. The process of diagnosis and the costs of the repair are explained.
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What happens when you turn on the water at a faucet in a building whose water is supplied by a one-line jet pump? (See the sketch at the top of This article for the basic components of a one-line jet pump system.) Our photograph (left) shows a one-line jet pump installed in a home.
Notice that there is a horizontal pipe with a check valve? That's the pipe leading to the water source. (We explain this check valve at WELL PIPING CHECK VALVES.)
The vertical pipe rising from the pump is the jet pump outlet connection that sends pressurized water to the water pressure tank and onwards to the rest of the building.
The following steps describe normal operating of a building well pump and water supply system. Other cases in which the well pump controls are not working properly, there is a problem with the controls, pressure tank, pump, or well itself are discussed at WATER PRESSURE REPAIR GUIDE & COSTS and at WELL WATER PRESSURE DIAGNOSIS.
Separately we also provide a WATER PRESSURE PROBLEM DIAGNOSIS TABLE. The following articles pertain if you have a private well, pump, and tank system for your building or if your incoming community water supply pressure and flow are just too low to start with:
Consumer advice on saving money on water supply repair costs includes a review of the parts and labor costs of a typical well pump and pressure tank replacement case. Carson Dunlop's sketch (at page top) shows the main parts of a one-line jet pump well installation. Readers of this document should also see our other diagnostic guides for water pumps, wells, motors, in table form:
Nearly all well pumping systems, one line jet pump, two line jet pump, or submersible well pump, require a foot valve installed at the bottom of the well piping. If your building has water pressure problems, see WELL WATER PRESSURE DIAGNOSIS.
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Technical Reviewers & References
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Water Supply & Drain Piping, Wells, Pumps, Water Supply Equipment