Fingers crossed it'll cut ally

[z3t4]

...to make a peristaltic pump with,
they have a low flow rate but must be worth a try for a giggle
they look pretty simple to make

Hi Mark.

You can get peristaltic pumps on the 'bay reasonably cheaply. Do a search for 'condensate pump' or 'Aspen peristaltic'. I got one a couple of years ago for a tenner. For the last week it's been pumping dilute citric through a crudded-up coffee machine heat exchanger.*

Sorry, rambling again. Where did I put the Jaffa cakes?

John

*another ebay win.