Aqua-Pure APPM150 - Manual (Page 21)

5-2
PROBLEM POSSIBLE CAUSE SOLUTION
1) Water CLEAR when
drawn, turns RED
upon standing (Stain
producing). A. Insuffi cient air injection. A. Check for proper compressor operation.
B. Bypass open or leaking. B. Close bypass valve and/or repair as necessary.
C. Filter bed overloaded with precipitated iron due
to insuffi cient backwash, or failure to backwash
due to malfunction of control timer or unplugged
control valve power cord. C. Upon correction of problem (increase backwash
frequency if problem determined to be insuffi cient
frequency), manually backwash until backwash water
starts to clear (in more severe iron fouling cases, fi lter
bed may need chemical cleaning- contact Customer
Service Department at 1-866-990-9785).
D. Presence of manganese or tannins. D. Recheck water analysis.
E. Flow rate excessive for model. E. Reread FACTS TO REMEMBER WHILE PLANNING YOUR
INSTALLATION, page 2-2.
F. pH of treated water too low (should be 7.0 or
higher; with manganese, pH must be 8.2). F. Replenish MpH component in media (contact Customer
Service Department at 1-866-990-9785).
2) Water RED when
drawn from tap. A. Filter bed overloaded with precipitated iron due
to insuffi cient backwash fl ow rate. A1. Recheck well pumping rate and repair or replace as
required.
A2. Check for obstructions or kink in drain line.
A3. Check for improper drain line fl ow controller (see
specs.) Upon correction of this problem, if manually
backwashing does not clear bed of iron, fi lter bed may
need chemical cleaning- contact Customer Service
Department at 1-866-990-9785.
B. Filter bed overloaded with precipitated iron due
to insuffi cient backwash, or failure to backwash
due to malfunction of control timer or unplugged
control valve power cord. B. Upon correction of problem (increase backwash
frequency if problem determined to be insuffi cient
frequency), manually backwash until backwash water
starts to clear (in more severe iron fouling cases, fi lter
bed may need chemical cleaning — contact Customer
Service Department at 1-866-990-9785).
C. Aeration tank installed too far from media tank
causing iron to precipitate before media tank. C. Relocate to a location closer to fi lter inlet.
3) Excessive pressure
loss through fi lter. A. Filter bed overloaded with precipitated iron. A. Refer to Section 2 above.
B. Control bypass valve not fully open. B. Open as necessary.
C. Sand, silt or mud collecting in fi lter bed. C. Check well for these conditions.
D. Filter bed not properly “classifi ed.” D. Manually backwash to reclassify.
E. “Cementing” or “channeling” of fi lter media. E. Prod (stir) fi lter bed to break up hardened layer. Increase
backwash frequency to prevent reoccurrence.
4) “Milky” or “bubbly”
water (appears to
contain small bubbles
which do not quickly
dissipate). A. Excess gases in water (Carbon Dioxide,
Hydrogen Sulfi de, Methane). A. May require draining of water system or installation of
air relief control on the fi llport cap of valve adapter base,
(contact Customer Service Department at 1-866-990-
9785).
Section 5: TROUBLESHOOTING - GENERAL