Aqua Kem Blue Sachets. They are easy and convenient to use, as they always provide the right dosage. Convenience which enables you to maximize the usage and care of your portable or Cassette toilet.
BIO-PAK EXPRESS PORTA-PAK EXPRESS WALEX
Benefits:
Highly concentrated sachets for the waste-holding tank
Water-soluble sachets 
Stimulates the break-down of solids and toilet paper
Reduces gas build-up in the tank
Pre-measured sachets – no spilling!
Refresh every 4 to 5 days

Packaging: 1 x 360g resealable bag which contains 15 x 30g sachets. 

Disposal: Suitable when emptying waste holding tank.
 
Special Care Required
The experiences of users and our own extensive tests have shown that mobile sanitation systems require special care and maintenance. To avoid possible damage, faster wear-out or problems when emptying the waste-holding tank, we advise using Thetford Toilet Care products. Our products are there to guarantee trouble-free and comfortable use of your portable or built-in toilet. You can rely on our 40 years of experience in developing toilet care products.