Back Pressure Problems; Vacuum Pressure Problems - EcoWater CHC Series Service And Troubleshooting Manual

Table of Contents

5.2.4 Back Pressure Problems-

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

pressure of the CHC chamber is not appropriate the effectiveness of the CHC treatment may be

affected. Increase low CHC back pressures until within range or CHC sound appears. If the

back pressure is too high then decrease the pressure utilizing the back pressure valves on the

discharge of the CHC all the way to any tower isolation valves. Verify that the CHC chamber

is at least within 10' of the water height as long as the back pressure does not exceed 5 psi.

5.2.5 Vacuum Pressure Problems- (When Applicable)

Most vacuum problems are associated with leaks or blocked vacuum tubes.

Leaks- To verify the location of a leak, if you run your hand over the connections of the

tubing and fittings of the vacuum system while the system is running, as you move a

location that is leaking the vacuum will increase, you can then rework that connection or

replace it to fix the problem. In some cases the gauge may be the source of the vacuum

leak. If the gauge has the valve on the back of it, simply close off the valve during

operation of the CHC skid and then turn off the power to the pump if the reading remains

constant then the gauge is not leaking, however, if the pressure decreases quickly, the gauge

or valve will required replacement.

b. Blocked tubing- To verify if the tubing is blocked, first turn off the CHC pump, if the

vacuum changes quickly, there is no blockage. However if the vacuum responds very

slowly or does not change at all, remove the hose from the vacuum gauge and see if the

gauge then responds, if it does the gauge is good and the blockage is somewhere else. The

most common location for blockage is in the vacuum tubes within the chamber, these tubes

will need to be removed and cleaned or replaced. You can also verify that the elbows that

attach to these tubes are free from any buildup, use a descaler (e.g. Rydlyme or equivalent)

to remove the buildup or replace the elbow to correct the problem

c. If you could not find a blockage or leak, you will need to verify the pump pressures and if

correct, the problem is likely associated with the CHC chamber itself. Contact EcoWater

CHC Service Department.

Table of Contents

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