There is no way that will work so would think it would have been made to order. No drain cock or means of flushing it by the looks of it, you would even struggle just removing the whole thing to clean it. Why have they used a hex galv nipple and then used a female copper to iron? Maybe thats how you remove it by running a recip saw down the threads of the hex nipples lol. Do them 3 circuits feed u/f by any chance?
