
Dog balls costing £1 from Pets at Home Aintree - just slice the end of

Use the end of the pump to cut out a core - this can be a bit tough if the end of the pump is standard issue - i have the rim ground down a bit.

I mark the centre of the bung - i think it helps if the pull rod is more central. I am not sure what others do but I don't use the full length of the bung, i use approximately 2/3 of the length. I suppose it depends on the amount of threads on the pull rod and how hard you want to pull - just experiment.
I am still not an expert at pumping especially in the winter, but at least I know the pump is set up correctly and hoping that the success rates increases again with the warmer days
Ken
Crosby
