My acquisition.

[kingcreaky]

Right. about killed myself tonight lifting these bad-boys onto the trailer. Tomorrow I intend to drive over to my friends unit where there is the magic "three-phase" I can temporarily wire these in, to proove they work. Then Il put them on the bay. As ultimately im going to need single phase ones in order to use the vacume bed in my workshop

However, can anybody shed any light on what im looking for... how do I tell they work? I assume they are like big vaccuume cleaners... except I wont put my hand near the inlet as I guess it will suck it off? (my hand)
I assume the following

I guess the square blue tanks need to perhaps be filled with water? I say this as their is what looks like a sight glass on the side (labelled E) ...

if anybody could tell me what im expecting to see from each of the labelled ports... and perhaps confirmation of whether im meant to be filling the blue square units with anything id really appreciate your feedback ;)