Is that a sulfur denitrator?
What do you use for sulfur and how much of it?
What do you do about the hydrogen sulfide, meaning where does your effluent go to in the sump?
What do you do about pH?
How many feet of coil is that?
Do you have a recirc pump or is it just on a really slow flow? ~drops per sec? What is the gph on the pump you're using?
How is the ball valve at the top of the unit attached to the unit? I asked a guy from that department at HD if they had any mini bulkheads, etc---he said the only bulk head he knew of were used in building houses... tried to explain what I meant, and he assured me they don't have anything like that. So, how do you get the hole secured, so it doesn't leak under pressure?
Sorry about all the questions.... I just don't want to guess...