Thetford Cassette loo C4 blade

[Martin4]

Can I buy the blade as a spare or do I have to buy a new cassette?

At present, the unit still functions but the surface of the blade valve has developed a blister, as though it were delaminating.

Grateful for any advice.

 

[rob_jax]

Probably worth looking at the Thetford web-site, if you follow this link http://www.thetford-europe.com/the/thomecon.nsf/web/cassette_c4_en you can download the parts list for the C4.

Maybe replace the rubber components at the same time?

Robert