[Plumbing] Honestly, this pump is the most irksome thing.

[TheAnimus]

I've a Salamander Pumps ESP80 negative head pump. It's in positive head mode. I need to flick it to negative. I appreciate that any kind of switch costs money, but it is irksome that they didn't use EEPROM for storing this setting: Check out the instructions on page 8.

http://www.salamanderpumps.co.uk/Web...11_Issue14.pdf

So turn of the power to the pump, then back on. Wait a bit, then power off. Then back on again.

I am going to have to print and laminate this, every time the power gets interrupted it flicks to positive head mode :@

[herulach]

arduino + relay?

[peterb]

Just reading those instructions, a single power interruption shouldn't affect operation - there is a specific sequence. It might be worth contacting Salamander to see if a power interruption should cause it to flip back.