Well I've spent the last hour mopping up approximately 6 gallons of water lost as I thought it'd be a good idea to faff around with the pipework and pulled the standpipe out by 'accident'. Good job for laminate!!
Anyway, I dropped the e-drain by approximately 1/4" as I never really accounted for the slight angle in my front room compared to the garage when I trial ran it all.
I have dropped the main drain by approximately 2" and fitted a fluval strainer on top (no more fish loss):
I have checked my levels in my sump with power off and also with the main drain blocked and I'm pretty happy. All the bio-media and pump are submerged although I've lost a bit of water quantity a s aresult of lowering the main drain but I guess it will still run smoothly.
I have again made some quick tweaks and hope I can get the water level in the tank right finally. Although basic maths will show the following:
Return > Drainage = Water Level too high
Return < Drainage = Water Level too low
Return = Drainage = Correct water level
I guess I really need a gate valve to get it spot on otherwise over several hours the levels are going to slowly go out.
We will see....
