20
TROUBLESHOOTING GUIDE
1.
Water is clear when drawn, turns red upon standing (stain producing)
a. Insufficient air drawn by the valve- Check Air Draw time.
b. Bypass open or leaking - Close bypass valve and/or repair as necessary.
c. Filter bed backwashed at improper intervals - Refer to backwash frequency chart in operation
manual to ensure unit is set correctly.
d. Do not increase the backwash frequency unless required to based on the chart, since the media
needs to be some what iron-fouled for best performance (in more severe iron-fouling cases, filter
bed may need chemical cleaning.)
e. Presence of manganese or tannins - Recheck water analysis.
f. Loss of air pocket in unit - generally caused by the check valve failing - clean and or replace the
check valve .
2.
Water is red when drawn from tap
a. Filter bed overloaded with precipitated iron due to insufficient backwash flow rate - causing
channelling a) Recheck well pumping rate and correct as required.
b. Check for obstructions or kink in drain line, or for improper drain line flow controller (see specs).
Upon correction of this problem, if manually backwashing does not clear bed of iron, filter bed may
need chemical cleaning.
c. Filter bed backwashed at improper intervals - Refer to backwash frequency chart in operation
manual to ensure unit is set correctly. Do not increase the backwash frequency unless required to
based on the chart, since the media needs to be somewhat iron-fouled for best performance (in
more severe iron-fouling cases, filter bed may need chemical cleaning.)
3.
Excessive pressure loss through filter
a.
Filter bed overloaded with precipitated iron - Refer to Section 2 above.
b.
Control inlet/outlet valve(s) not fully open - open valves.
c.
Sand, silt or mud collecting in filter media - check well for these conditions.
d.
Filter bed not properly “classified” - Manually backwash to reclassify.
e.
“Cementing” or “channelling” of filter media - Prod (stir) filter bed to break up hardened layer,
backwash frequency to prevent recurrence increase.
f.
Pipes from pump or pressure tank to filter are clogged or restricted - clean or replace as required
then refer to section 2 above.
4.
“Milky” or “bubbly” water (appears to contain small bubbles)
a. Excess air-draw - Check adjustment for duration of draw in “Air Draw” cycle.
b. Excess gases in water (carbon dioxide, hydrogen sulfide, methane) - May require cleaning or
installation or air-relief control.
c. Excessive flow rate through the unit - refer to specifications for the unit do not exceed
recommended service flow rates restrict manually with a valve or flow controller.
5.
Valve not drawing air
a. Check direction of brine line check valve. The arrow on the check valve should be towards the valve.
b. Check Programming.
c. Check Valve Inlet and Outlet direction. Looking at the control valve from the front, the water
should enter the valve from left hand side
d. Check the brass nut of the brine line assembly is not loose.
