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Peristaltic Pumps DIY or these...

Mr T

24 Nov 2009
Nr Wroxham, Norfolk
Right, first post so here we go (note to George Farmer, yep its me mate, yer old pal Tesco).

I would like to automate fert dosing to my 260l tank and was looking at the various peristaltic pumps available (on e-bay etc) when I came across Williamson Pumps Ltd. They make a range of these but also do some specific aquarium dosing pumps. (click http://www.williamson-shop.co.uk/aquarium-dosing-pumps-8-c.asp). Their small OEM pumps (http://www.williamson-shop.co.uk/oem-peristaltic-pumps-10-c.asp) are about 10 - 20 quid cheaper but then require a bit more DIY fiddling to get up and running. Does anyone have any experience of this manufacturers' gear and is it any good? I'm not afraid of constructing something but for the sake of a tenner and less agro would I be better off just going for the aquarium version. Any suggestions / tips gratefully received!

Hi all,
I haven't tried these particular pumps, but I used an eccentric cam variable rate ex-medical peristaltic pump to very slowly re-circulate hydroponic solutions in small containers. It worked well, but it used to get through a vast amount of silicon tubing, so it might be worth factoring that in as a cost (this design may be much better?).
cheers Darrel