Rab's Dump valve fitting guide
1. Thouroughly clean all areas of the dump valve with Carb cleaner.
2. Check, and ensure there is the correct amount of space in your household bin.
3. Open lid of said bin.
4. Deposit dump valve into bin, using a suitable degree of force.
5. Close bin lid.
6. Now is a good time to decide whether or not to remove bag and take outside for collection.
Congratulaions, your car no longer sounds like a bus....