Harris 156593 - Multiport Valve Operation Modes; Filter Mode; Backwash Mode; Rinse Mode

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7. Depress and turn the handle to the RINSE position.
In the RINSE water ow is directed through the
lter bed and out of the lter through the backwash
outlet. This process settles the lter media bed into
place and ensures any dirt or debris is rinsed out of
the lter, preventing possible return to the pool.
8. Switch on the Pump. Open the Inlet Valve. Rinse
water will ow out through the drain pipe.
9. When the rinse water in the sight glass appears
clear. Switch off the Pump. Close the Inlet Valve.
10. Depress and turn the handle to the Filter position
and Switch on the Pump. Open the Inlet Valve for
normal operation.
CHAPTER 7: MAINTENANCE
The lter media will only require replacement once it
has reached the limits of its designated life. Refer to
the product information of the particular lter media
used. To ensure the maximum life of the selected lter
media, please follow the procedures below.
1. Backwash the lter regularly according to the
instructions set under BACKWASHING.
2. Maintain a correct chemical balance for your pool
or spa’s water. The chemical balance of the water
is a relationship between its pH, Total Alkalinity,
Calcium Hardness and water temperature. The
water must be maintained to the following:
- pH Level: 7.2-7.8.
- Total Alkalinity: 80-175ppm
- Calcium Hardness: 175-300ppm
CHAPTER 8: TROUBLESHOOTING
Above normal or excessive force to operate the
Multiport Valve: Scoring or jamming with foreign
matter or debris. If this condition persists after rinsing,
disassemble the valve to clear. Continued operation
of the valve may result in a non-sealing condition
(damage to spider gasket). This will lead to water loss
to the backwash line or to inefcient ltration.
Dirty Water:
1. Insufcient ltration time.
2. Heavy contaminants or dirt load.
3. Dirty lter, requires backwashing.
4. Air leaking on suction (inuent line).
5. Pump impeller vanes blocked.
6. Insufcient water supply (water level low, blockage).
7. Pump not primed.
8. Incorrect water chemistry.
9. Excessive ow of water for lter size. Foreign
matter or debris forced through lter bed and
through the underdrain.
Filter Media in the backwash:
1. Excessive quantity of media in the lter.
2. Excessive water ow.
3. Incorrect size or grade of lter media.
Filter Media returning to Swimming Pool or Spa:
1. Filter is on recirculate.
2. Verify it is the lter media and not from another
source.
3. Damage to the underdrain laterals.
4. Damage or incorrect t of Multiport Valve are
correct.
5. Incorrect or mixed grades of media in the lter.
Shortltrationcycles:
1. Presence of algae or scale builds up.
2. Check water chemistry.
3. Excessive water ow, check pump size, mains
water ow.
4. Filter blockage. Clean lter media.
CHAPTER 9: SPECIFICATIONS
ITEM FLOW MAXIMUM FILTER MEDIA
NO. RATE PRESSURE AREA REQUIRED
GPM PSI FT LBS
156593 40 50 1.25 100
156594 49 50 2.00 175
156595 50 50 2.80 300