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Just a quick note.....got the dissolved oxygen test data back. 8 parts per million. It is the same as all of the cooling towers on site as well and none of the other pumps are cavitating. Talked to a guy and he said that 9 ppm is the beginning of the "red flag" zone for dissolved oxygen....I...

Hi folks!! Still no feedback on our dissolved oxygen study...but as I stated before...red herring I think. Ok to address some of the questions/suggestions (which again I can't tell you how much I appreciate!! [2thumbsup]) I wish I could say that strainers were the issue because I would be at...

Try www.innomag.com as well.....they make mag drive sealess pumps for "unfriendly" fluid media.

If any of you that monitor these threads have experience with pumping systems as well, I would deeply apreciate you jumping over to the pump engineering section and reading my thread on split case pumps and cavitation. I have provided as much information as I can think in two posts and have...

Nothing further from anyone?? Still no results on my part from the dissolved oxygen testing. I think this is more of a red herring than explanation...but that's just my gut instinct. Thanks pumpdesigner for the info and I am further investigating a couple of articles on incipient cavitation...

Howdy all and thanks for the beginning of what I am hoping is the end of this issue.....and yes pumpdesigner.....it is a MAJOR headache!!! And remember misery loves company!! :-D Anyhow....to add more to the discussion and answer repsonses for additional information. The following are the...

I have 6 single stage split case pumps in a chiller system. Half on the evaporator side and half on the condenser side. All pumps are identical in construction and configuration, i.e. impeller diameter, speed, motor hp, etc. One set pulls water directly from a cooling tower through what has...

I have been reviewing threads on pumps running in parallel here and on other sites. I seem to find a lot of information on 2 pumps running in parallel and then the information on 3 pumps running in parallel and how it is pretty much useless……I have 4 pumps, all identical performance...