Thanks I missed this earlier but you may have the solution
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The bigger peristaltic pumps will do 11ml per RPM so at 300rpm will dose 100ml in about 2 seconds. BUT will probably not be very accurate and more importantly cost £600....🙁A peristaltic pump would have been my first choice, but the OP wants it done in 2-3 seconds rather than minutes.
I reckon it's for dosing cooling water into your perpetual motion engine to power your time machine. 🙂I won’t reveal what the machine is used for yet
You can keep guessing
Sorry to hear you've had problems with them. I've only had to contact them about 1 item and they were quick (1 day) to resolve by email (support@vevor.co.uk).I sent emails to 3 different addresses that I found, I got a reply today, 2 days later and they ask for a video of the problem
Luckily I used PayPal so my next step is to raise a dispute
The problem I believe is that although I bought it from a UK website it’s actually a Chinese company so language is the barrier for them to reply other than with a preselected script