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Hello again, After reading the latest posts, Here is the analysis of the RO permeate: ph = 7.1 TOTAL Hardness: 4ppm Cond: 37 microseimens TDS: 25.9ppm Chlorides: 25ppm M Alkalinity: 20ppm Soluble Fe: <0.1ppm As the pH is 7.1 and as there is dissolved Co2 in the permeate, would I then...

Hi all, Thanks for your posts. In response to the questions raised: The dipslides on the systems do not show any signs of a bacterial problem which would be big enough to cause pH lowering on this scale...(all are below 10^2 count) Bromine levels are almost always between 1-3ppm (although low...

Hi, I have come up against a problem on a site that we manage which has 7 spray humdifiers. The problem is as follows: All humidifiers have low pH: the table below shows the analysis: (pH) 4.5 4.5 4.5 3.9 5.3 5.0 6.0 (Cond)480 1194 566 948 210 466 48.4 (CL-) 160 200...

Thanks Hydrae, Looks like the best method here.... Still, as there are three separate systems, this wont be an easy job. Time now to sort out an action plan :) Many thanks, Lucaz

First off, many thanks for a speedy response on the forum. And here is the next problem: I have received an enquiry regarding a manufacturing plant that needs to treat its discharge of water which is contaminated with a glue residue. (I dont have analysis available of the glue yet). So far...

dicksewerrat, Many thanks for your help on this one. I just need some further clarification on this point: "flip the switch til full. turn off. you could put in a manifold so you could flip a switch and open/close the different solenoid valves at each tank" Could the switching be automated...

Hello everyone, I am currently thinking about a designing an automated dosing system for one of my clients. The problem is as follows: On the site, there are three air blast chillers that contain glycol. The site uses the chillers to cool plastic extrusion machines (they make pipes and...