sunjoe SJ-CMPS1 User manual

© 2021 by Snow Joe®, LLC
All rights reserved. Original instructions. SAVE THESE INSTRUCTIONS
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EN
A Division of Snow Joe®, LLC Model SJ-CMPS1 Form No. SJ-SJ-CMPS1-880E-M
R
OPERATOR’S MANUAL
DUAL-CHAMBER
TUMBLING COMPOSTER
42 GAL | 2–10 WEEKS | WEATHERPROOF
IMPORTANT!
Safety Instructions
All Operators Must Read These
Instructions Before Use
Read all the instructions contained in this manual. Keep this
manual in a safe place, so that the information is available at
all times. If you give this equipment to another person, make
sure to provide these operating instructions. Basic safety
precautions should always be followed to reduce the risk of
personal injury or property damage.
Notice the personal safety alert symbol mused in this
manual to draw your attention to a WARNING given along
with the particular operating instruction. This means that
the operation requires special ATTENTION, CAUTION, and
AWARENESS.
mWARNING!
1. Keep children and small pets away from the composter.
2. All who participate in the assembly should wear safety
glasses throughout the assembly process.
3. Keep hands and loose clothing away when rotating the
drum.
mDANGER!
1. DO NOT overload the composter. The maximum weight
capacity is 330 lbs.
2. DO NOT rotate the composter with frozen material inside.
3. DO NOT climb in, on, or around the composter.
4. DO NOT use or store hot objects near the product.
mCAUTION!
1. Assemble the composter on level ground.
2. Remove the doors before emptying compost.
3. To avoid damage to the plastic panels, do not overtighten
the screws during assembly.
4. Remove the drum from the frame before relocating the
compost tumbler.
5. Use care when using sharp objects to remove compost to
avoid damaging the drum.

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Know Your Dual Chamber Tumbling Composter
Read the owner’s manual and safety rules carefully before using your tumbling composter. Compare the illustration below to
the actual unit in order to familiarize yourself with the location of the various parts and hardware. Save this manual for future
reference.
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1. Drum Panels (x7)
2. Door Panel
3. Doors (x2)
Technical Data
Capacity ............................................................... 42 gal (160 L)
Weight Capacity ............................................... 330 lbs (150 kg)
Chambers ............................................................................... 2
Drum Rotation .................................................................... 360 
Vents ...................................................................................... 16
Weatherproof ....................................................................... Yes
Drum Material .................................................... Polypropylene
Frame Material ........................................ Powder Coated Steel
Drum Height ...................................................... 23.5 in. (60 cm)
Total Height ......................................................... 37 in. (94 cm)
Total Width ........................................................... 26 in. (66 cm)
Net Weight ....................................................... 14.3 lbs (6.5 kg)
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3
4
5
6
10
8
9
11
4. A-Frame Tube Section (x2)
5. Right Angled Tube Section A (x2)
6. Right Angled Tube Section B (x2)
7. Axle
8. Axle Cap
9. Divider
10. Vents (x16)
11. Side Panels (x2)
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Unpacking
NOTE: Before beginning assembly, make sure that all of
the parts listed below are present. If any part is missing or
damaged, do not attempt to assemble the product. Contact
the Snow Joe®+ Sun Joe®customer service department at
1-866-SNOWJOE (1-866-766-9563).
Carton Contents
• Side panel (x2)
• Drum panel (x7)
• Door panel and 2 doors
• Divider
• Axle
• PVC axle cap (x2)
• A-frame tube section (x2)
• Right angled tube section A (x2)
• Right angled tube section B (x2)
• M5x10 machine screw and nut (x56)
• M6x55 machine screw and nut (x2)
• Manual and registration card
Assembly
Choose a level location for assembly. Remove all parts from
the packaging, and check for missing parts.
1. Attach the door panel to the two drum side panels using 4
M5x10 machine screws and nuts (Fig. 1).
2. Install one of the drum panels under the door panel you
just installed using 7 M5x10 machine screws and nuts
(Fig. 2). Repeat this step for two additional drum panels.
3. After installing the six panels (2 side panels, 1 door panel
and 3 drum panels), insert the divider between the grooves
on the inside face of the drum panels (Fig. 3).
4. Afterwards, install the remaining drum panels to complete
the composter drum. At this point you may insert the two
doors onto the door panel.
5. Next, press t both PVC axle caps on either side of the
axle. Then slide the axle through the composter drum
making sure it protrudes from both side panels (Fig. 4).
Fig. 1
Side panels
Door panel
Fig. 2
Drum panel
Fig. 3
Grooves
Divider
Fig. 4
PVC Axle
Cap
Axle

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6. Assemble the frame according to the diagram below. The
tube sections snap together using springed push buttons
and require no screws (Fig. 5). Note that identical right
angled tube sections are diagonal from one another.
7. Install the assembled composter drum onto the
assembled frame by securing both sides of the axle and
frame together using two sets of M6x55 machine screws
and nuts (Fig. 6).
Fig. 6
Axle
A-Frame
Tube Section
M6x55
Nut
Operation
What To Compost
The composter works best by mixing moist nitrate-rich greens
with dry, carbon-rich browns in a 2 parts green to 1 part
brown ratio. The following diagram shows various examples of
green and brown compostable, as well as non-compostable
materials (Fig. 7).
How to Compost
1. First, choose a suitable location with direct sunlight and
a at surface with enough room to accommodate the
rotation of the composter.
2. Slide open one of the doors and add new material for
composting (Fig. 8).
3. Close the door and tumble the composter drum 5 – 10
times. Repeat this procedure every 2 – 3 days and every
time new material is added (Fig. 9).
Fig. 5
Right Angled
Tube Section B
A-Frame Tube Section
Right Angled Tube Section A !
Fig. 7
Leaves/Twigs
PlantsRaw Veggies Food Scraps Grass
Hay/Straw Egg Shells Coee
Meat/Bones Cheese Plastic/Trash Poisonous
Plants
Do Not Compost:
Browns (1 part):
Greens (2 parts):
Fig. 8

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4. Once one side is full allow it to decompose and start
adding new raw material into the other side to create a
second batch. Alternatively, one may choose to use the
two chambers to produce two dierent types of compost
(e.g. grass clippings & food waste).
5. Depending on the materials added and the ambient
temperature, your compost should be ready anywhere
from 2 – 10 weeks. Follow the table below for an
approximate guide.
Ambient Temperature Time (Days)
75 F (25 C) ~ 55
85 F (30 C) ~ 40
95 F (35 C) ~ 35
NOTE: However, the only sure re way to check if your
compost is ready is if it looks, feels and smells like rich,
dark earth rather than rotting vegetables. In other words, it
should be dark brown, crumbly and smell like earth.
6. To empty your composter, place a small tarp or plastic
sheet on the ground. Rotate the composter so that the
doors face down. Then slide the door open to allow the
compost to fall out before sliding the tarp out (Fig. 10).
Composting Tips
Composting
• Maintain a 2:1 greens (Nitrates) to browns (Carbon) ratio.
• Smaller shredded materials decompose faster. Run your
lawn mower over pine needles or leaves and cut up kitchen
scraps to speed up the composting process.
Checking Your Progress
1. After 2 – 3 days, check if the compost is getting warm
to the touch. If so, it means the benecial organisms are
multiplying and decomposing the materials. Tumbling
the composter 5 – 10 times every 2 – 3 days will mix the
materials inside and keep the process active and uniform
throughout the composter.
2. Squeeze a handful of compost to check if it is sucently
moist. Your compost should feel like a damp sponge. If it
feels dry, add a little water and tumble to mix well. Avoid
adding too much water.
Using Your Compost
• Finished compost will contain ne and coarse material. For
a ne blend, sift the compost for use in ower pots. Use the
coarser compost as top-dressing for outdoor garden beds
or till directly into your garden.
• You can also reserve some of your nished compost as a
starter for your next batch, or to reactive a batch that died
down too quickly.
Support
If your Sun Joe®SJ-CMPS1 tumbling composter requires
service or maintenance, please call 1-866-SNOWJOE
(1-866-766-9563) for assistance.
Model and Serial Numbers
When contacting the company, reordering parts, or arranging
service from an authorized dealer, you will need to provide
the model and serial numbers, which can be found on the
decal located on the unit. Copy these numbers into the space
provided below.
Record the following numbers from your new product:
Model #:
Serial #:
S J - C M P S 1
°
0
6
3
Fig. 9
Fig. 10

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Troubleshooting
Problem Remedy
Compost does not heat up
Mix is too wet Add dry browns
Mix is too dry Add water
Odorous
Ammonia smell (too high in nitrates) Add dry browns
Putrid smell
(too wet/not enough oxygen)
Add dry browns to absorb excessive moisture then tumble composter and
open door for air circulation
Pests/Insects
Rodents Remove any meats or fatty foods
Flies/insects Mix or cover kitchen scraps with brown materials
Only a company specialist may be able to correct faults that cannot be rectied with the aid of this table. Please call the
Snow Joe®+ Sun Joe®customer service center at 1-866-SNOWJOE (1-866-766-9563).