A hand holding a scoop of composting bulking material above a white bag labeled "SUN Compost Sure," suggesting fast decomposition for use in your Sun-Mar Composting Toilet.
Sun - Mar Compost Sure Composting Toilet Bulking Material Composting Toilets - Shelter Institute
Sun - Mar Compost Sure Composting Toilet Bulking Material Composting Toilets - Shelter Institute
Sun - Mar Compost Sure Composting Toilet Bulking Material Composting Toilets - Shelter Institute

Sun-Mar Compost Sure Composting Toilet Bulking Material

$29.99 USD /
Subscription -

The bulking mix that keeps a Sun-Mar composting toilet working the way it should.

Best For

  • Sun-Mar toilet owners
  • Off-grid camps and cabins
  • Keeping compost aerobic and active

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Available for pickup
In stock at 873 US-1, Woolwich, ME 04579 · Usually ready in 24 hours

In stock at 873 US-1, Woolwich, ME 04579

Sun-Mar Compost Sure Composting Toilet Bulking Material

Available for pickup

873 US-1, Woolwich, ME 04579

Usually ready in 24 hours

873 U.S. 1
Woolwich ME 04579
United States

+12074427938

Compost Sure is Sun-Mar's bulking material for composting toilets, in an 8 gallon (30 L) bag, as Compost Sure Green or Compost Sure Blue.

It keeps the compost aerated, absorbs moisture and helps it break down quickly, which keeps the system odor-free and working. Green is coarse peat moss and chopped hemp stalk for Sun-Mar waterless toilets. Blue is chopped hemp stalk for Sun-Mar ultra low-flush Centrex systems. Add 1 cup per use, or 1 cup per person per day.

Sun-Mar has made composting toilets for more than 40 years, from offices in Stoney Creek, Ontario, and Tonawanda, New York.

  • Options: Compost Sure Green; Compost Sure Blue
  • Size: 8 gallon (30 L) bag
  • Green: coarse peat moss and chopped hemp stalk, for Sun-Mar waterless toilets; holds oxygen and moisture
  • Blue: chopped hemp stalk, for Sun-Mar ultra low-flush Centrex systems; adds carbon and drains excess liquid
  • Use: 1 cup per use, or 1 cup per person per day
  • Made by: Sun-Mar

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