That lead to theory #2, contaminated water.
Physan 20 use very little foams up with airWHAT WOULD BE THE #1 CLEANING SOLUTION TO SAFLEY STERILIZE THE RESERVOIR.
I made it completely light proof and bleached everything then let the shower run through every thing for about 2 hrs, I then soaked everything in alcohol and rinsed again for another hour in the shower, then I soaked everything in 3% hydrogen peroxide for another hour. I rinsed out multiply times then put in ph 5.6 water with 30ml/gal of 3% hydrogen peroxide and I put the plants back in the tent and the system has been running 48hrs now and no foul smell or cloudy water. I just added the 5ml/gal of the hygrozyme and I will check back in another 48hrs to see what happens.
I understand your concern. I used GH flora series, GH FloraNova series and Canna Aqua with Heisenberg's tea. No problems what so ever! In fact the added benefits were:I thought about using tea but I am using GH flora grow and flora micro which are chemical nutrients, I don't know how they would react with a organic tea. I would like to brew beneficial bacteria but I guess I'm just worried that I will run into problems mixing chemicals with organics.
Post a picture of your setup so we can see if there is anything you aren't telling us.
Otherwise water test time or time to get a new hobby. Hopefully whatever it is won't kill you.