Wet behind the ears

Well I thought it would just be a case of pumping out the dirty water and refilling the tank, how naive can you be. The sludge was about 10"" deep and needed to be shovelled out...and it was quite a big tank!

But after about eight hours the sludge was mostly gone

 and the water ran clear

I'm slowly beginning to realise that what seems like a simple task can take so much longer than you think it will. Connecting the tank to the house will have to wait till another time. There's a couple of important things to see to first, and a bit of an obstacle to overcome