Pressure Issues With The Chc Skid; Gauge Problems; Low Pump (S) Pressures; High Pump Pressures - EcoWater CHC Series Service And Troubleshooting Manual

Table of Contents

5.2

Pressure Issues with the CHC skid-

The following chart represents the normal CHC pressures. Some pressures may differ from those

shown below due to water height in relation to the CHC chamber as well as pump specifications.

CHC Pressures- The CHC chamber requires the following pressures:

Vacuum –

Pump Pressure-

Back Pressure-

If the gauge is reading high or low, turn off all power to the device the gauge is connected to

and allow the pressure to stabilize. The gauge should return to 0 psi. If it does not, open the

vent at the top of the gauge and allow it to return to 0 psi (this may take several minutes). If the

pressure still remains above or below 0 psi, replace the gauge. Replace the gauge

Verify that the gauges are operating and return to 0 psi as the pump is stopped. Verify the

strainer basket is clean. You will have to verify the sides of the basket are clean, and not just

the bottom. If the pressure remains low, verify that the isolation valves around the pump as

well as the towers are open. If the pump appears to be cavitating, verify that there is no o-ring

or seal failures in the pump suction line. If air is ingested the pump pressure could be low. If

the pressure remains low, verify that no blockage exists within the tubing to the gauge. If the

pressure remains low, rebuild or replace the pump or motor.

Verify that the gauges are operating and return to 0 psi as the pump is stopped. Verify the

isolation valves at the unit as well as the towers are open. High pump pressures, if not caused

by a defective gauge, are normally caused by an obstruction to flow. If all the valves are open,

the obstruction will have to be located and removed. The obstruction may be within the CHC

chamber itself. Open the chamber and make sure that all nozzle inlets are clear of debris. Be

aware that some systems with a high head pressure due to the location of the pump as

compared to the height of the water level may increase the performance of the pump causing

higher pump pressures. In these cases, verify that the pump pressures reflect the initial

installation pump pressures and if so, disregard the current gauge reading as being high.

(all) -25 ~ -30 (When applicable)

(10 and 20 GPM units only) 72-84 psi

(40, 60, 80, 125 and 250 GPM units) 85-102 psi

(all) 3-6 psi, normally set using the sound

Table of Contents

Do you have a question about the CHC Series and is the answer not in the manual?