RKIN ONLISOFT PRO User manual
ONLISOFT PRO SALT-FREE WHOLE HOUSE WATER TREATMENT SYSTEM
MODELS: OPX8, OPX9, OPX10, OPX13
The OnliSoft Pro 5 Stage Salt-Free Water Conditioning System removes impurities in your water
and prevents hardness build-up throughout your home.
The RKIN technology ensures that your water has the most contact time with filtration media
inside the tank, ensuring the best possible filter media utilization.
CUSTOMER SERVICE IS AVAILABLE MON-FRI 9AM-5PM EST 1-800-803-4551
www.RKIN.com
Table of Contents
Product Specs 2
Installation Overview 3
Complete Parts List 4
Carbon Filter Soak Instructions 5
OnliSoft Salt-Free Conditioner Soak Instructions 7
Carbon Rinse Instructions 8
OnliSoft Rinse Instructions 9
Pre-Filter Setup / Installation 10
Complete Install 12
Maintenance 13
Premium Whole House Water Filter 13
Sediment Filter 13
Replacing the Sediment Filter 14
Troubleshooting 15
Warranty Information 16
⚠ CAUTION:
Do not install on well water without checking with RKIN customer representative first.
© 2019 RKIN Water Systems Customer Service MON-FRI 9AM-5PM EST 1-800-803-4551 1
Product Specs
Specification
Description
OPX8
OPX9
OPX10
OPX13
Bathrooms
1-3
2-5
4-6
7+
Carbon Media
Capacity
500K Gallons or
5 Years
1 Million Gallons
or 5 Years
1 Million Gallons
or 5 Years
1 Million Gallons
or 5 Years
ZEE PRO
Pre-Filter
Replacement
Every 6-9
Months
Every 6 Months
Every 6 Months
Every 6 Months
Tank Width
8”
9”
10”
13”
Tank Height
with Head
48”
52”
58”
58”
Connection
Size
1”
1”
1”
1”
Operating
Temperatures
36°F-120°F
36°F-120°F
36°F-120°F
36°F-120°F
Operating
Pressure
25-80 PSI
25-80 PSI
25-80 PSI
25-80 PSI
Flow Rate
9 GPM Service /
12 GPM Peak
11 GPM Service
/ 17 GPM Peak
15 GPM Service
/ 23 GPM Peak
28 GPM Service
/ 41 GPM Peak
pH Range
6-11
6-11
6-11
6-11
© 2019 RKIN Water Systems Customer Service MON-FRI 9AM-5PM EST 1-800-803-4551 2
Installation Overview
© 2019 RKIN Water Systems Customer Service MON-FRI 9AM-5PM EST 1-800-803-4551 3
Complete Parts List
Carbon and OnliSoft Tanks
Sediment Filter
Wrench
ZEE Pro Pre-filter Housing
Bypass Valve (2)
ZEE Pro Sediment Filter
1” MNPT PVC Elbow
Fittings (4)
Mounting Kit for Pre-filter
Housing:
● Mounting Bracket
● Philips Head Screws
(4)
● Bolt Head Screws (4)
● Washers (4)
Hose Bib Assembly
⚠ CAUTION:
The system must be installed on the main water supply line.
If this system is installed into a metal (electrically conductive) plumbing system such as, copper
or galvanized metal, the water treatment system will interrupt the electrical ground continuity of
the plumbing system. This will result in the ineffectiveness of the metal plumbing system to be
used as an electrical ground for errant electricity from improperly grounded appliances or
potential galvanic activity. There are building codes which encourage the grounding of electrical
appliances through the plumbing system. If your home is built in accordance to such building
code, you must first install either a bypass consisting of the same conductive material as the
existing plumbing, or a grounded "jumper wire" that bridges the equipment and re-establishes
the continuity and the conductive nature of the plumbing system before using the water
treatment system.
© 2019 RKIN Water Systems Customer Service MON-FRI 9AM-5PM EST 1-800-803-4551 4
Tank Boot Adjustment
The tanks sit in a “boot” and may need to be adjusted after shipping.
Leaning Tank ⇨
Tank Boot ⇨
(Needs Alignment)
(Correct Position)
If either tank is not standing perfectly straight up and down, lift the tank up 6 inches and
carefully tap it on the ground. Repeat this until the tank stands vertically straight and sits firmly
into the tank boot.
The bottom of the tank is round and the boot allows the tank to stand upright.
© 2019 RKIN Water Systems Customer Service MON-FRI 9AM-5PM EST 1-800-803-4551 5
Carbon Filter Soak Instructions
⚠ IMPORTANT!
Before installation, soak the carbon media inside the tank in water for a MINIMUM of 2 days.
Set the tank on a level surface.
Note: The area around the tank may get wet.
Install the bypass valve with red arrows to the head of the
tank by hand-tightening quick connects.
Install PVC elbow to the inlet side of the bypass valve by
hand-tightening the quick connect.
Connect the hose bib assembly to the inlet side.
Hand-tighten. Connect a water hose to the opposite end of
the hose bib assembly. Put the bypass valve in service
mode (with the red arrows parallel to each other).
Slowly turn the water on about halfway. Wait until the water
fills the tank and overflows from the outlet side and then turn
the water off. Put the bypass valve in bypass mode (with the
red arrows forming a straight line) and disconnect the hose.
Finally, set the tank aside in a safe place for 2 days.
© 2019 RKIN Water Systems Customer Service MON-FRI 9AM-5PM EST 1-800-803-4551 6
OnliSoft Salt-Free Conditioner Soak Instructions
⚠ IMPORTANT!
Before installation, soak the media inside the tank in water for a MINIMUM of 2 days.
Set the tank on a level surface.
Note: The area around the tank may get wet.
Install the bypass valve with red arrows to the head of the
tank by hand-tightening quick connects.
Install PVC elbow to the inlet side of the bypass valve by
hand-tightening the quick connect.
Connect hose bib assembly to the inlet side. Hand-tighten.
Connect a water hose to the opposite end of the hose bib
assembly. Put the bypass valve in service mode (with the
red arrows parallel to each other).
Slowly turn the water on about halfway. Wait until the water
fills the tank and overflows from the outlet side and then turn
the water off. Put the bypass valve in bypass mode (with the
red arrows forming a straight line) and disconnect the water
hose. Finally, set the tank aside in a safe place for 2 days.
© 2019 RKIN Water Systems Customer Service MON-FRI 9AM-5PM EST 1-800-803-4551 7
Carbon Rinse Instructions
This process removes most of the excess carbon dust out of the carbon bed. Residual dust may
remain, which can be seen in toilets and sinks but will clear within a day or two.
After the carbon has soaked for 2 days, take the tank outside
to rinse excess carbon dust out of the filter.
Connect the hose to the inlet side of the bypass valve using
the bib assembly and the PVC elbow. Put the bypass valve
in service mode (with the red arrows parallel to each other).
Slowly turn the water on halfway and allow the water to run
and overflow for 15 to 20 minutes.
Turn the water off and disconnect the water hose. Connect
the water hose to the outlet side.
Slowly turn the water on to full strength. Allow the water to
run and overflow for 5 minutes.
Disconnect the hose and connect to the inlet side.
Slowly turn the water on halfway and allow the water to run
and overflow for 10 minutes.
Disconnect the hose bib assembly.
© 2019 RKIN Water Systems Customer Service MON-FRI 9AM-5PM EST 1-800-803-4551 8
OnliSoft Rinse Instructions
After the OnliSoft media has soaked for 2 days, take the
tank outside to rinse excess media fines out of the filter.
Connect the hose to the inlet side of the bypass valve using
the bib assembly and the PVC elbow. Put the bypass valve
in service mode (with the red arrows parallel to each other).
Slowly turn the water on halfway and allow the water to run
and overflow for 5 minutes.
Turn the water off and disconnect the water hose. Connect
the water hose to the outlet side.
Slowly turn the water on to full strength. Allow the water to
run and overflow for 5 minutes.
Disconnect the hose bib assembly.
© 2019 RKIN Water Systems Customer Service MON-FRI 9AM-5PM EST 1-800-803-4551 9
This manual suits for next models
4
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