Liking the jokes, i'll be passing many coats on later!!! 
So this morning ive hooked up 2 hosereels from one battery....the auto cal on the controller is about as useful as a smack in the face so for the first 2 hours, rather than dead ending, the pump sounds like chitty chitty bang bang (replace the 'ch' with 'sh' if you wish!!)
Managed to sort that, so i figure why stop there!as if the day isn't already winding me up, lets do something else.....
Next house i get water into the doorbell....
You'd think this shouldnt be a problem, or at least if a problem occured the doorbell just wouldn't work....
Oh no!!! This doorbell decided it was on speed, and played a crappy 'ding dong' theme over and over and over and over and over and over....
Take the battery out, dry the inside, fix it back up.....
'Ding dong' over and over and over and over....
Half hour of faffing about, lots of swear words later we decide the doorbell wins...
So just picked up a new doorbell ready to be fitted tomorrow
Deep breath, count to 10....
They say it happens in 3's!
P.s
Frank and Bobplum can do one
Just thought I pick up on the Cal, The control and pump may struggle if you running two lines and poles. This is because of the pressure difference between the two poles. Water pressure will want to follow the easiest route so in general will flow to the lower pole 1st meaning less pressure for the higher pole.
This leaves the pump struggling to provide enough water and pressure in some cases. The control is trying to manage two different pressure settings at the same time which may mean you pump drops in out of DE as pressure changes between the two lines
The control can manage this short term, I would suggest Calibration is done with both poles extended to the same max height you expect to be working at.
In an ideal world one pump/control per pole is much more efficient as the pumps are not working as hard and draw less current.
The controller has a number of features protecting it from a miss wire. Fitting the fuse as here will help protect the controller as the fuse blows and not the reverse protection diode, correct the polarity replace the fuse and away you go.